Abstracts Selected from Naihuo Cailiao(Refractories)--A Bimonthly in Chinese Volume 53,Number 5,2019

摘要

Microstructure study on oxidation of zirconium diboride/Gao Zhenxin,Liu Cheng//Naihuo Cailiao.-2019,53(5):330 Abstract:The oxidation behaviors of fused zirconium diboride and chemosynthetic zirconium diboride as well as morphology and composition of their oxidation products were researched by FESEMEDS and XRD.The two kinds of zirconium diboride were heated in air for 3 h at 700℃,900℃,1100℃and 1300℃,respectively.The results show that ZrO2 and B2O3(l)are generated from the chemosynthetic zirconium diboride oxidized at 700℃,for 3 h or the fused zirconium diboride oxidized at 800℃for 24 h;B2O3(l)dissolves into water and then crystallizes into H3BO3.