摘要
ThechromiumoxidematerialswerepreparedusingCr2O3micropowderasmainstartingmaterial,TiO2micropowderassinteringaid,polyvinylalcoholasbinder,byaseriesofprocessessuchasslurrying,sprayinggranulation,machinemouldingandcoldisostaticpressing,andfiringat1500℃for3hinair(oxygenpartialpressurewas2.1×104Pa),industrialnitrogen(oxygenpartialpressurewas1×103Pa),purenitrogen(oxygenpartialpressurewas10Pa),highpuritynitrogen(oxygenpartialpressurewas0.1Pa),andcarboncakeembeddedatmosphere(oxygenpartialpressurewas2.3×10-12Pa).EffectsofoxygenpartialpressuresonthesinteringbehaviorofCr2O3materialswereinvestigated.Theresultsshowthat(1)for3wt%TiO2-dopedspecimens,thereisasubstantialdependenceofsinteringonoxygenpartialpressure(0.1Pa-2.1×104Pa),andthebulkdensityincreasesandapparentporositydecreaseswithoxygenpartialpressuredecreasing;(2)eveniftheoxygenpartialpressureis0.1Pa,thespecimenwithoutTiO2cannotreachdensificationsintering;(3)underverylowoxygenpartialpressureofcarbonembeddedatmosphere,Cr2O3materialscontainingTiO2ornotcanattaindensification.
出版日期
2011年01月11日（中国Betway体育网页登陆平台首次上网日期，不代表论文的发表时间）
