Development of translucent calcia stabilised zirconia ceramics via conventional sintering in air

被引：4

作者：

Lakshya, Annu Kumar ^{[1
]}

Jha, Keshav Kumar ^{[1
]}

Arun, Aditya ^{[1
]}

Chowdhury, Anirban ^{[1
]}

机构：

[1] Indian Inst Technol Patna, MAPS Mat Proc Struct Correlat Lab Met & Mat Engn, Bihta 801103, Bihar, India

来源：

JOURNAL OF MATERIALS SCIENCE | 2023年 / 58卷 / 45期

关键词：

TRANSPARENT CERAMICS; TETRAGONAL ZIRCONIA; GRAIN-SIZE; RAMAN; Y2O3-ZRO2; ZRO2;

D O I：

10.1007/s10853-023-09133-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Translucent, monoclinic-free, novel calcia-stabilised zirconia ceramics were developed utilising conventional (pressureless) sintering. The 10 mol% CaO-doped zirconia (10CaSZ) ceramic depicted a maximum transmittance of 81% at 600 nm for a 0.6 mm thick pellet while for 3 mol% CaO-doped zirconia (3CaSZ) phase-pure tetragonal system, the value was recorded as 59% at the same wavelength and thickness. The ultrafine (similar to 3 nm) nanoparticles sintered via two-step sintering process yielded full densification (> 99%) at temperatures as low as 1150 degrees C. The average grain size of sintered 3CaSZ ceramic was 85 nm. For 10CaSZ ceramic, it increased from 170 nm to 0.76 mu m with elevated sintering temperatures. The increase of sintering temperature ensured different microstructure from ultrafine grains, a bimodal grain size distribution, and ultimately leading to a grain-locking morphology. The influence of microstructure and constituent phases (tetragonal and cubic) on total forward transmittance in the visible range was analysed and explained.

引用

页码：17175 / 17187

页数：13