|
摘要：
|
|
采用化学沉淀法制备了纳米级 3Y TZP粉体 ,制得了粒径尺寸为 8～ 16nm ,少团聚的粉体。热压烧结得到相对密度为 97% ,晶粒尺寸为 10 0nm～ 2 5 0nm的 3Y TZP陶瓷片。通过研究成形温度对成形性能的影响 ,最终采用超塑成形工艺制出了半球形陶瓷零件
|
|
Y\|TZP nano powders were synthesized by chemical precipitation Then, weakly agglomerated powders of 3Y\|TZP with grain size of 8～16nm was obtained After hot pressing, ceramic discs which relative density is 97% and grain size is 100nm～250nm were obtained The influence of forming temperature on the formability of nano ceramic discs has been studied Hemispherical caps of nano ceramic were made by superplastic forming processing finally
|
|
基金项目：
|
|
|
|
作者简介：
|
|
|
|
参考文献：
|
1 Wakai,SSakaguchi,YMatsunoSuperplasticityofYttriaStabilizedTetragonalZrO
2PolycrystalsAdvCeramMater,1986(1):259～263
2 TGNieh,JWadsworthSuperplasticBehaviorofaFineGrained,YttriaStabilized,TetragonalZirconiaPolycrystalActaMetall,1990,38(2):1121～113
3
3 THermansson,KPDLaterl o f,GLDunlopSuperplasticDef ormatio nofY-TZPZirconiaSuperplasticityandSuperplasticForming,1988:631～635
4 JWChen,LAXueSuperplasticAluminaCeramicswithGrainGrowthInhib itorsJAmCeramSoc,1990,73(9),2585～2609
5 KimB ,HiragaKSuperplasticityinaluminaenhancedbyc o-dispersionof10%zirconiaand10%spinelparticlesActaMaterialia,2001,49(5):887895
|
|
服务与反馈：
|
|
【本网站尚未开通全文下载服务】【加入收藏】
|
|
|
|
