摘要
采用新颖的准气相反应法、经600～800℃煅烧后,制备出了具有均匀介孔显微结构和花生样纳米晶粒的立方ZrO_2微球。通过计算和TEM检测对介孔微球中花生样纳米晶粒的大小进行了表征。结果表明:尽管在600℃时晶粒大小的计算值与TEM表征值并不十分吻合,但计算的晶粒大小仍然是可信的;而且将计算的晶粒大小与TEM表征结果相结合能够更全面、准确地评价晶粒的大小,形貌和聚集状态。
Cubic phase ZrO2 microspheres, with a homogenously mesoporous microstructure and peanut-like nano-grains, have been synthesized in this paper by a novel quasi-gaseous state reaction method after calcining at 600～800℃. Characterization of sizes of peanut-like nano-grains in mesoporous ZrO2 microspheres has been performed by both calculation and TEM. It is shown that the calculated grain sizes are believable although not quite consistent with TEM description at 600 ℃. And the calculated nano-grain sizes combined with TEM characterization could more completely and exactly evaluate grain size, morphology, and aggregation.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2007年第A03期126-130,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金项目(59974026)
