EDiTORLER / EDITORS Servet TURAN • Ferhat KARA
Transkript
EDiTORLER / EDITORS Servet TURAN • Ferhat KARA
ULUSLARARASI KATILIMLI IV. SERAMIK KONGRESI BiLDIRILER KITABI WITH INTERNATIONAL PARTICIPATION IV. CERAMIC CONGRESS PROCEEDINGS BOOK 22-25 EYLUL / SEPTEMBER 1998, ESKIS. EHIR - TURKIYE EDiTORLER / EDITORS Servet TURAN • Ferhat KARA • Ersan PUTUN Anadolu Universitesi Seramik Miihendisligi Boliimii Eski§ehir-Turkiye ICINDEKILER / CONTENTS BOLUM 1 /PART 1 GELENEKSEL SERAMIKLER / TRADITIONAL CERAMICS Siirecjer / Processing Processes technology in whitewares where do we stand and what is to be expected ? Vitrifive iiriinlerde proses teknolojisi: neredeviz, ne bekleniyor? H. REH (CAGRIL1 KONU§MACI-INVITED SPEAKER) 1 A simple quality control technique for determining the plasticity of ceramics bodies Seramik biinvelerin plastisitesini saplamak igin basit bir kalile kontrol teknigi S.A. KESSEL, G.J. SMALL 7 Transmission electron microscopy of fired bone china body microstructure Pi$mi$ kemikli porselen mikroyapisinin gecirimli elektron mikrokobu He incelenmesi A. KARA, R. STEVENS 11 Magnezyum silikat esasli mineral seramiklerin sinterlenmesi ve ic, yapi geli§imi Sintering and microstructural development of magnesium silicate based ceramics E. GUNAY, T. BAYKARA, T.O. OZKAN 19 Turk sepiyolitlerinin elektrokinetik ozellikleri Electrokinetic properties of Turkish sepiolites E. SABAH, H. SAGLAM, H. OZDAG, M.S. CELIK 25 Saglik gere§leri dokiim 5amurlarinin reolojik ozellikleri iizerine elektrolitlerin etkisi Effect of electrolytes on the rheological properties of sanitary ware slips E. OZEL, N." AY, E. PUTUN 33 Granit seramigin ozelliklerine kuvarsin etkileri Effect of quartz on the properties of granite N. AY, E.C. ARICI 41 Duvar karosu iiretiminde perlit kullanimi Use ofper lite in wall tile production N. AY, B. TAS.PINAR 47 Kir§ehir-Kaman yoresi nefelinli siyenit cevherinin seramikte kullanilabilirligi iizerine yapilan on ara§tirmalar Preliminary investigations on the useabilitv of nepheline syenite ore in ceramics from Kirsehir-Kaman region A. KARTAL, W. SCHULLE, O.F. EMRULLAHOGLU 53 The change of phase composition in kaolinite-and illite-rich clay based ceramic bodies Kaolinitik ve illitik kil bazh seramik biinyelerindefaz kompozisyonun degisimi A. ARAS '. ' 59 Demirci yoresi zeolotik tiiflerinin seramik biinyelerde kullaniminin on 9ahs.masi Preliminary investigations on the useabilitv ofzeolitic pumists in ceramic bodies from Demirci region A. ARAS, S. ICOZ, H. DEMIRHAN, M. DEMIRHAN 67 Cati kiremitlerinin renkli sirlarla kaplanmasi Application of colour glaze on roof tiles B. KARASU, E. AKGUN 73 Misir9amuru Egyptian paste A.T. OZEN, G. ALPMAN 79 Tarih boyunca seramik sanatinda astann kullanimi ve Canakkale yoresi killeri ile perdahh astar uygulamalan G. KARADENiZ, A. ARCASOY 85 Atiklarin Degerlendirilmesi / Recycling Elektroliz atiginin tugla biinyelerinde renklendirici olarak degerlendirilmesi Utilisation of electrolysis waste in colouration of building brick B. KARASU, N.' AY 91 Borminerali atiklanndan Uretilen camsi maddenin olasi kullanim alanlan Possible application areas ofglassy material obtained from boron mineral waste C. YAMAN, M. MARS.OGLU 97 Yiiksek firm curuflan ile gencer aliiminyum atiksu antma 9amurlannin yapi malzemesi olarak degerlendirilmesi Utilisation of blast furnace slag and aluminium waste water treatment mud as a building material B. KAVAKLI, A. ARCASOY 103 Seramik sanayii atiksulannin ozellikleri, antilmasi ve kontrolii Properties, purification and control of waste water from ceramic industry M. KAVAKLI : Ill Etibank Kirka-Boraks isjetmesi konsantrator atiginin sir hammaddesi olarak degerlendirilmesi Utilization of Etibank -Kirka boric acid plant waste as a glaze raw material S. GENC, V. SEVINC, A. OZS.EKER, M. CAKI 119 Boksit atigi kullanilarak Uretilen ak9ini sirlannin fiziksel ozellikleri Physical properties of glazes derived from bauxite plant waste N. YALCIN, V. SEVINC 125 U9UCU kiillerin sofra e§yasi yapaminda kullanimi Use of fly ash in the production of tableware N. AY, S. E§MELiLER 131 Fe2O3 ve CroOg'iin renk olu§umuna etkileri Effect ofEejOi andCr2Oj on colour development N. AY, M. CAKI 137 Pigmentler / Pigments Zircon ceramic pigments synthesis by the sol-gel method Sol-jel metodu ile uretilmis zirkon seramik pigmentler T. DIMITROV, L. GEORGIEVA, E. HASAN 143 Ceramic pigments in the quaternary system NiO-ZnO-TiO2-SiO2 NiO-ZnO-TiO2-SiO2 sistemindeki seramik pigmentler M. PREDA, A. MEGHEA, I. RAU, H. REHNER (ii) 149 Cimento ve Beton / Cement and Concrete Sogutma hizinm 9imento klinkerinin ogiitiilebilirligine etkisi Effect of cooling rate on the grindability of cement clinker I.A. ALTUN .' 155 Hydration processes and mechanical properties of some DSP cement composites Bazi DSP cimento kompozitlerinin hidratasvon prosesleri ve mekanik ozellikleri M. GEORGESCU, A. BADANOIU.'. 161 Consideration concerning the portland cement hydration and hardening in the presence of some organic polymers Bazi organik polimerlerin varliginda Portland cimento hidratasyonu ve sertlesmesi iizerine du$unceler M. GEORGESCU, M. COARNA, A. CONESCHI, B. MARCULESCU 169 Refrakterler / Refractories Korund-karbon refrakter malzeme uretiminde re9ine kullaniminin optimizasyonunun ara§tinlmasi Investigations on the optimization of resin content in corund-carbon refractories t.A. ALTUN 175 Kur§un endiistrisindeki bazik refrakter malzemelerin korozyon kinetigi ve bnlemleri Corrosion kinetics of refractories used in lead industry and protection measures LA. ALTUN....;...; ". 181 Yiiksek demirli boksitlerin refrakter uretiminde kullanilmasi Use of high iron containing bauxites in the production of refractories T. ABKAN, C. YAMAN 187 Investigation of thermal shock resistance in model magnesia-spinel refractory materials Model magnezva-spinel refrakter malzemelerinde termal sok direncinin ara$1inlmasi C. AKSEL, R.W. DAV1DGE, P.D. WARREN, F.L. RILEY 193 Dry refractories for steel induction furnaces Celik indiiksivon ocaklan icin kuru refrakterler N. ANGELESCU 201 Sintering and characterisation of AhC^-chromite compacts AI2O3 - kromit biinvelerinin sinterlenmesi ve karakterizasyonu J. PRASAD, A. GARG, T.K. DE, M.S. MUKHOPADHYAY 207 Sintering and characterisation of MgO-CnQ? compacts MgO - Cr2O$ biinvelerinin sinterlenmesi ve karakterizasyonu J. PRASAD, G.N. AGRAWAL, K.C. CHATTERJEE 215 Manyezit-Krom refrakter tuglasinda sinter manyezit cevheri tane boyut dagihminin kalite iizerine etkisi Effect ofmagnesite particle size distribution on the quality of magnesite-chromite refractories N. ERDOGAN, M. KAYA, H. KURAMA 223 (iii) Digerleri / Others International quality standards for tiles, sanitaryware and tableware Karo, vitrifiye ve sofra e^yalarimn uluslararasi kalite standartlan W.L. WALTERS, P.S. "HANCOCK, N.J. LEAK, G.J. SMALL (CAGRILI KONUS.MACI-INVITED SPEAKER) 229 Tiirk-Avrupa seramik karo standartlan iizerine gozlemler Observations on Turkish-European ceramic tile standards I. AKKURT 235 Bazalt cam-seramiklerinin korozyon davrani§i Corrosion behaviour of basalt glass ceramics §. YILMAZ, V. GUNAY 243 Lazer ile dogaltas. modifikasyonu iizerine kar§ila§tirmali arastirmalar Comparative studies on natural stone modification by laser M. ZEREN, §. KARAGOZ '. 249 Olgun bir sanayi dalinda teknoloji yonetimi Technology management in a mature industry branch B. KUBAN ' 255 Turkiye'de seramik mUhendisIigi ogretimine genel bir bakis. An overview of ceramic engineering education in Turkey R. ARTIR ." 261 Technological properties of some medieval glazed pottery in Anatolia Bazi sirlanmi^ Anadolu Ortaca^ comleklerinin teknolojik ozellikleri §. DEMIRCI, E.N. CANER-SALTIK, A. TURKMENOGLU, H. BOKE 267 Ceramic of gumelnita "Gumelnita" seramigi V. BURGHELEA, G. NICULESCU, I. STANESCU, C. POPA, S. BARZOI 273 Aktif silikanin porselen biinyenin mikroyapisina etkisi Effect ofactive silica on the microstructure of porcelain S. KURAMA, N. AY, S. TURAN, E; PUTUN 279 Oksitleyici atmosfer §artlannda Uretilen porselenlere 9inko kristal sin uygulamalan Zinc based crystal glaze applications on porcelains sintered under oxidising atmosphere B. KARASU, M. CAKI 287 Kromitin emaye ve seramik UrUnlerde siri^i ve sirustU boya olarak degerlendirilmesi Utilisation ofchromite as inglaze and overglaze pigments in ceramic products S. §AHiN, S. GENC, M. CAKI 295 Kadmiyum ve selenyum bilesjklerinden emaye ve seramik fritleri i^in siri^i ve sirUstU dekor boyasi uretimi Inglaze and overglaze decoration pigments from cadmium and selenium compounds for enamels and ceramic frits S. §AHlN, S. GENC, M. CAKI 299 Kutahya-Maltepe kirmizi kilinin seramik 9amur ve astar Uretiminde kullanimi Red clav from Kutahya-Maltepe region for ceramic bodies M. CAKI, M. CAKI, F. AYDOGDU 303 Pirometrik konlar Uzerine bir ara§tirma A study on pvrometric cones G. SUME'R 307 (iv) BOLUM 2 / PART 2 ILERI TEKNOLOJI SERAMIKLERI / ADVANCED CERAMICS Oksit seramikler / Oxide ceramics Current trends in freeze-drying technology of oxide powders and ceramics Oksit tozlan ve seramiklerini dondurarak kurutma teknolojisinde ki giincel egilimler O.A. SYLYAKHTIN, N.N. OLEINIKOV, Y.D. TRETYAKOV 313 Synthesis of AI2Q3 powder via homogeneous precipitation by urea at 25°C 25°C'de u're ile homojen cokturme sonucu AI2O1 tozu sentezi F. KARA, G. S.AHIN ." 319 Alumina formation by aluminum powder oxidation Aluminvum toz oksidavonu ile alumina olu$umu E. SUVACI, G.L.' MESSING 325 Reaction kinetics of aluminum particle oxidation Aliiminvuni partikiil oksidasyonunun reaksiyon kinetigi E. SUVACI, G. SIMKOVICH, G.L. MESSING 333 AI2O3 esasli yapisal seramiklerin du§Uk basin9h enjeksiyon kahplama ybntemiyle §ekillendirilmesi Shaping of AI2Ophased structural ceramics by low pressure injection moulding Y. PALACI, E.S. KAYALI 339 Microstructure and microchemistry of Y-doped 01-AI2O3 Ykatkili (zAljO^'nin mikroyapisi ve mikrokimvasi M.A. GlJLGUN", M.L. MULVIHILL, V. PUTLAYEV, M. RUHLE An ELNES study of yttrium-segregated grain boundaries in alpha alumina Yitrivumca zengin alfa alumina tane sinirlarinin ELNES calismusi M.A. GULGUN, W-Y CHING, M. RUHLE 351 Orientation imaging microscopy of alpha alumina Alfa aliiminanin yonlenme mikroskobu ile goriintiilenmesi M.L. MULVIHILL, M.A. GLJLGUN, E. BISCHOFF, M. RUHLE 357 Seydi§ehiraluminasininmetalografikparlatmai9inkullamlabilirligininara§tinlmasi A study on the utilisation of Sevdi$ehir alumina in metallographic polishing M.S. BA§PINAR, S. ZEYTIN, O.F. EMRULLAHOGLU 363 Hydrothermal synthesis of zirconia nanopowders and thin films Zirkonva nano tozlar ve ince filmlerinin hidrotermal sentezi R.R. PITICESCU, T. VELEA, A. ANDREI, C. MONTHY 369 Applications of ceramic superplasticity Seramiklerin siiperplastikliginin uvgulamalan S. TEKELi .' 375 345 Static and dynamic grain growth during superplastic deformation of yttria-stabilized tetragonal zirconia polycrystals Yitria ile stabilize edilmi§ zirkonva polikristallerinin superplastik deformasyonu esnasinda statik ve dinamik tane biiviimesi S. TEKELi ; 381 (v) Oksit-disi seramikler / Non-oxide ceramics eramics: Processing, microstructure and mechanical properties S13N4 seramikleri: Uretimi, mikroyapisi ve mekanik ozellikleri M.J. HOFFMANN (CAGRILI KONUS.MACI-INVITED SPEAKER) 387 Novel developments in K-SiAlON ceramics (Z-SiAlON seramiklerinde yeni gelqmeler H. MANDAL, M.J. HOFFMANN 393 Multi-cation doped ft-SiAlON ceramics Cok katvonlu exSiAlON seramikler E. DOLEKCEKIC, S. KURAMA, H. MANDAL, R. OBERACHER M.J. HOFFMANN, D.P. THOMPSON 395 High temperature thermal stability of calcium containing ft-SiAlON ceramics Kalsivum iceren t&SiAlON seramiklerinin vu'ksek sicaklik stabilitesi. H. MANDAL, D.P. THOMPSON.... 401 ft-SiAlON ceramics with elongated grain morphology ignesel tane vapili txSiAlON seramikler H. MANDAL, M.J. HOFFMANN 409 The parameters effecting the a«-»p-SiA10N transformation itf-*l7SiAlON donusiimunu etkileyen parametreler N. CAMUS.CU, D.P. THOMPSON, H. MANDAL 417 The variation of ft-SiAlON stability region in different rare-earth K-SiAlON systems Farkh nadir toprak &S1AION sistemlerinde e&SiAlONkararlihk bolgesindeki degi$meler N. CAMU§gU, D.P. THOMPSON 423 Planar defect structure of boron nitride Bor nitriirde du'zlemsel vapi hatalan S. TURAN, K.M. ' KNOWLES 429 Nitridation behaviour of sub-micron, monodisperse S1O2 spheres heated nitrogen atmosphere Azot atmosferinde isitdmis mikron-alti monodisperse SiO2 kiirelerin nitriirlenme davranisi V. ATAKAN, A.C. TA§ 435 Kompozitler / Composites Cyclic fatigue behaviour of saffil alumina fibre-reinforced mullite ceramic matrix composites at ambient and elevated temperatures Saffil alumina fiberleri He takviye edilmi$ mullit matriksli kompozitlerin oda ve yiiksek sicakhklardaki vorulma davrani$i C. KAYA, F. KAYA, H. MORI, T. KISHI, C.B. PONTON 437 Effect of deoxidation on the microstructure and ft—»p-SiC transformation in SiC-Si3N4 composites SiC-SijN4 kompoz.itlerinde a—*fiSiC faz donusiimu ve deoksidasyonun mikroyapiva etkisi S. TURAN, K.M. KNOWLES The influence of AI2O3 on mechanical properties of composites with zirconia matrix Alumina ilavesinin zirkonva matriskli kompozitlerin mekanik ozelliklerine etkisi E. VOLCEANOV, S. MOTOC, A. APOSTOL, R. NEAGU, A. VOLCEANOV 445 451 Effect of sintering atmosphere on ZTA composites characteristics Sinterleme atmosferinin ZTA kompozitlerinin ozelliklerine etkisi S. MOTOC, E. VOLCEANOV, R. NEAGU, A. APOSTOL 457 Boron carbide-aluminium composites produced by pressureless melt infiltration Basincsiz sivi metal infiltrasyonu ile bor karbiir - aluminvum kompozitlerinin iiretimi G. ARSLAN, F. KARA, S. TURAN 463 Laminated alumina-aluminium composites Aliimina-aluminvum lamine kompozitler F. KARA, S. TURAN, R. STEVENS, K.M. KNOWLES, E. PUTUN, J.A. LITTLE.469 Silisyum karburpar9acik takviyeli aluminyum-magnezyum ala§im matriksli kompozitlerin a§inma karakteristiklerinin belirlenmesi Determination of wear properties ofsilicon carbide paniculate reinforced aluminiummagnesium alloy matrix composites R. GURLER, I. MUTLU, H.CICEK, L CELtKYUREK 475 The effect of different factors on crack growth behaviour of SiC(P)/ Al-2124 single core bulk functionally graded materials SiCn IAI-212J fonksiyonel degi$ken malzemelerin catlak biiyiime davranqlanna degisikfaktorlerin etkisi H. UZUN 481 Interphase boundaries between hexagonal boron nitride and silicon carbide grains Hegzagonal bor nitriir ve silisyum karbiir taneleri arasindaki faz sinirlari S. TURAN, K.M. KNOWLES 489 AI2Q3/AI co-continuous composites synthesised by reacting kaolinite and aluminium Kaolinit ve aluminvumun reaksivonu ile elde edilen siirekli AI2O3/AI kompozitler A.E. UZGUR, F. KARA, S. TURAN 497 Seramik tane sinirlannin lslatma davrani§i Wetting behaviour of interfaces in ceramics S. TURAN 499 Zirkonya ilavesinin alfa aluminanin sinterleme davrani§ina ve mikroyapisina etkisi Effect of zirconia addition on the sintering behaviour and microstructure of (^alumina F. KARA, K. ALPTEKIN 507 Elektroseramikler / Electroceramics Microscopy and microanalysis of electronic ceramics Elektronik seramiklerin mikroskop incelemesi ve mikroanalizi K.M. KNOWLES (CAGRILI KONU§MACI-INVITED SPEAKER) 513 Chemical synthesis of pure and Gd-doped CaZrO3 powders used for gas-sensing applications Gaz algilama uygulamalannda kullanilan Gd-katkdi CaZrOs tozlarinin kimyasal sentezi I.E. GONENLI, A.C. TA§ ' 525 Chemical synthesis of (Nio.sZno.s) Fe2O4 powders (Nio 5ZnQ 5) Fe2Q4 tozlarinin kimyasal sentezi I.E.' GONENLI, A.C. TA§.' 531 Oxalate-hydrazinate precursor for low temperature synthesis of Mn-Zn ferrite Mn-Znferritlerinin diisiik sicakhk sentezi icin ogzalat-hidrazin ba$langig malzemesi T.G. MARUNTELU, E. CHIRTOP, M. TILICA, R.M. ION, C. BERCU, N. STANICA 533 (vii) Solid phase reactions involved in the formation of compounds from the ternary pseudosystemPbO.TiO2-PbO.SnO2-PbO.ZrO2 PbO.TiO2 - PbO.SnO2 - PbO.ZrO2 Uclu sistemindeki bilesimlerim olusumunda meyadna gelen kati hal reaksiyonlari R.M. PITICESCU, M. PREDA, H.H. REHNER, V. BADILITA 539 ZnO sinterlenmesinde PbO katkisinm etkisi Influence of PbO addition on sintering of ZnO A. AYGUN, H. ERKALFA, T.O. OZKAN 545 ZnO-Sb2Q3-MnO seramik sisteminin elektriksel ozelliklerine sinterlemenin etkisi Influence of sintering on the electrical properties ofZnO-Sb2OyMnO ceramic svsvtem H.O. TOPLAN, T.O. OZKAN ; .'..." 551 Characterisation of vanadium-doped zinc oxide varistors Vanadyum katkili cinko oksit varistorlerinin karakterizasyonu H-H. HNG, K.M. KNOWLES 557 Fabrication of acoustic transducer using lead niobate for high-temperature gas flow meter Yu'ksek sicakhk gas aki$kanligi b'lceri icin kur$un niobvum kullandarak akustik transducer iiretimi J. SOEJIMA, S. HOSHIKAWA, Y. KOBORI, K. NAGATA 565 Size dependent properties of hollow sphere transducers lei bo§ ku'reli transdiiserlerde hoyutun ozelliklere etkisi S. ALKOY, A.C. HLADKY, J.K. COCHRAN, R.E. NEWNHAM 573 Surface characteristics on photostrictive behavior of PLZT ceramics PLZTseramiklerde vu'zey kosullarinin "photostriktive" isil-genlesmeyeetkisi A. DOGAN, P. POOSANAAS, K. UCHINO 575 Halka seramikli cymbal transdUserlerinin bilgisayar yardimi ile tasanmi Design ojcymbal ceramic transducers by computer simulation A. DOGAN, A.C. HLADKY, R.E. NEWNHAM 581 Properties and reliability of piezoelectric ceramic transformers Piez.oelektrik seramik transformatorlerin ozellikleri vegiivenilirligi K. NAGATA, J. THONGRUENG, K. KATO 589 The role of polarization mechanisms in electrostrictive effects for low permittivity glasses and ceramics Elektrostriktif etkilerdeki polarizasyon mekanizmalannin du$uk permit iviteye sahip cam ve seramiklerdeki rolii V. SUNDAR, R. YIMNIRUN, R.E. NEWNHAM 597 Bazi seramik hammaddelerin dielektrik ozelliklerinin incelenmesi Investigation of dielectric properties of some ceramic raw materials A. KIRAK, S. GULER, H. YILMAZ, C. GULER 603 Temperature dependence of dielectric properties and field induced strain in low firing PZN-PFW-PFN and PN-PMW-PT relaxorferroelectrics Dusuk pisirme sicaklikh PLN-PFW-PFN ve PN-PMN-PT relaksor ferroelektrik malzemelerde, sicakhgin dielektrik ve elektrik alani etkili genle^meye etkileri V. SUNDAR, C. PEZANOWSKl, R. NATARAJAN, J.P. DOUGHERTY, R.E. NEWNHAM 605 Ceramics in MgO-AbO3 binary system, with high resistivity working temperatures Yiiksek direncli caligma sicakhgina sahip MgO-A^O^ seramikleri D. SERBAN, N. NEACSU, C. OPREA 607 Metal-ceramic micropackages for microwave application Mikrodalga uygulamalan icin metal-seramik mikro paketler C. ANTON,'M. MUNTEAN, G. SIMION, V. BURGHELEA Preparation of lead zirconate titanate (Pb(Zro.52Tio.48)03) by homogeneous precipitation and calcination Kursun-zirkon-titanat (Pb(Zroj2 Tio,48X>3 malzemesinin homojen coktiirme ve kalsinasyon yoluvla hazirlanmasi E.E. OREN, A.C. TA§ Hydrothermal synthesis of pure and Dy: BaTiO3 powders at 90°C and their sintering behaviour Safve Dy: BaTiO'j tozlarinin hidrotermatsentezi vesinterleme davraniiji E.E. OREN, A.C. TA§ 613 619 627 Bioseramikler / Bioceramics Bio uyumlu mika cam seramiklerinin di§ uygulamalan i9in Uretimi Production ofbiocompatible mica glass ceramicsfor dental applications H. DER, A. OZTURK 635 Production of macroporous calcium hydroxyapatite bioceramic parts Makroporoziteli kalsiyum hidroksiapatit bioseramik parcalarin uretimi N.O. ENGIN, A.C. TA§ 643 Chemical synthesis of biomimetic calcium hydroxyapatite powders at 37 °C and pH of 7.4 in synthetic body fluids Biomimik kalsiyumhidroksiapatit tozlarinin 37 °C ve pH 7.4'te sentetik viicut sivisi icinde kimyasal sentezi A.C. T A § 649 Production of the self-setting pastes of calcium phosphate bioceramics Kendi kendine sertleyen kalsiyum fosfat bioseramiklerin uretimi A. §EHiRLIOGLU, A.C. TA§ 657 Dip-coating of calcium hydroxyapatite bioceramics on titanium or steel strips Kalsiyumhidroksiapatit bioseramiklerinin titanyum veya celik geritler iizerine daldirma vqluvla kaplanmasi B. MAVi§, A.C. TA§ 659 In-situ coating of calcium hydroxyapatite on Ti-6A1-4V or316 L stainless steel surfaces at 37°C in synthetic body fluids Kalsiyumhidroksiapatit bioseramiklerinin Ti-6Al-4V veva 316 Lpaslanmaz. celik iizerine 37 °C'de sentetik viicut sivisi ile in-situ kaplanmasi A.C. T A § 661 The characterization of D-gun sprayed hidroxyapatite coating after heat treament and aging D-tabanca ile spreylenmis hidroksiapatitin isil islem ve yaslandirma sonrasi karakterizasyonu Z.E. ERKMEN, I.G. TURNER 669 Calcium phosphate-alumina biocomposite ceramics Kalsiyum fosfat -alumina biokompozit seramikler B. VIRGINIA, T. CHRISTU, L. VIORICA, I. DRAGOS, M. ALINA 677 Mullite-leucite dental porcelain Miillit-leucitedifporselenleri B. VIRGINIA, S. NELA, M. AURELIA 683 (ix) Manufacture of thin plaques of calcium hydroxyapatite bioceramics by tape-castings and die-pressing Kalsiyumhidroksiapatit bioseramik ince hamurunun §erit dokiim ve kuru presleme ile uretimi O. YIGITERHAN, A.C. TA§ 689 Kaplamalar / Coatings Termal sprey kaplama teknikleri Thermal spray coating techniques F. U S T E L / N . TOPLAN, F. YILMAZ 697 Plazma sprey yontemi ile Uretilen fonsiyonel degi§ken kaplamalann incelenmesi Analysis of the functionally graded coatings produced by plasma spray A.§." DEMIRKIRAN, E. AVCI '. 705 Iyon- ark katmanlama yontemi ile kaplanmi§ cam §i§e kahplannda ergiyik cam-kalip arayUzey ilis,kisi Molten glass-mould interface interactions in glass bottle moulds coated by ion-arc deposition §'. KARAGOZ, H. ALANYALI 713 J-79 jet motoru egzoz flaplannda kullanilan plazma sprey Z1O2 termal bariyer kaplamasina silisyum karbUr ilavesinin kaplama mekanik ozellikleri uzerine etkisi Effect ofSiC additions on the mechanical properties ofplasma sprayed Zn02 thermal barrier coating in J- 79 jet engine exhaust A. ALPAY, N.S. CANARSLAN 721 Plazma kaplamada porositeye etki eden faktorlerin Taguchi yontemi ile belirlenmesi ve kaplama ozelliklerinin incelenmesi Determination of factors influencing porosity in plasma spray coatings by Taguchi method and investigation of coating properties R. GURLER, D. PARACIK, A.S. AKAGUN, M. ALPER 727 Borlama isjeminin boyut degi§imine ve pUruzlulUge etkisi Effect of bonding on dimensional change and surface roughness Y. SOYDAN. V. CELIK 733 Mechanical properties of borided cold work steel Borlanmi$ soguk i§ celiginin mekanik ozellikleri §. §EN, I. OZBEK, U. §EN, C. BINDAL 739 Mechanical properties of borides formed on the surface of AISI 1040 steel A/5/1040 geliginin yiizeyinde olusturulmus boriirlerin mekanik ozellikleri C. BINDAL, M. USTA, A.H. UCI§IK 745 Borlama ile yuzeyi sertle§tirilen AISI W4 takim 9eliginin bazi mekanik ozellikleri Some mechanical properties of AISI W4 tool steel surface hardened by bonding L OZBEK, C. BINDAL .' 753 Modelling of microstructure to generate designer ceramics Dizayn edilmq seramikleri U'retmek igin mikrovapi modellemesi R. STEVENS (CAGRILI KONU§MACI-INVITED SPEAKER) 761 The degradation of engineering ceramics Muhendislik seramiklerinin korozvonu J.A. LITTLE (CAGRILI KONUS.MACI-INVITED SPEAKER) 763 Digerleri / Others (x) Oxynitride glass ceramics Oksinitrtir cam seramikleri S. HAMPSHIRE (CAGRILI KONUS. MACI-INVITED SPEAKER), H. LEMECIER, Y. MENKE, V. PELTIER-BARON, R. RAMESHE 771 Kapasitor-de§arj teknigi ile oksit ve oksit olmayan seramiklerin kaynaklanmasi Capacitor discharge joining of oxide and non-oxide ceramics S. TURAN ; 783 Surface/interface engineering and adhesion metal-silicate glass system Metal-silikat cam sisteminde yuzev-araviizev diz.avm ve adhezvon M. LUPESCU, M. ZAHARESCU, D. RADU, A. VOLCEANOV 791 SiC-MoSi2-Al2O3 eletriksel lsitmaeiemanlannin yanma sentezi yontemiyle Uretimi Combustion synthesis of SiC-MoSi2~Al2Oi heating elements N.S. CANARSLAN '. 797 W-35Ag elektrik kontak malzemesinin toz metalurjisi Uretim sUrecinin incelenmesi ve mikroyapisal karakterizasyonu Production ofW-35Ag electrical contact material by powder metallurgy and microstructuralcharacterisation Z. ASLANOGLU, F. FINDIK, M.L. OVECOGLU, Y. KARAKAS. 803 Apatite and other calcium phosphate based bioceramics and structural studies Apatit ve diger kalsiyum fosfat baz.li bioseramikler iizerine yapisal gali^malar M. KIZILYALLl' Y. SARGIN, C. TELLI 809 Seramik malzemelerin karakterizasyonunda spektrometre tekniklerinin kullanimi Spectrometric techniquesfor characterising ceramic materials S. TURAN, F. KARA 817 Titre§imli dbnUm a9isi b^erlerin tasanmi ve uretilmesi Designing and production of the vibrating gyrosensor A. DOGAN 819 (xi)