Thermite assisted synthesis of ZrB2 and ZrB2-SiC through B4C reduction of ZrO2 and ZrSiO4 in air

作     者：R.V.KRISHNARAO R.SANKARASUBRAMANIAN 

作者机构：Defence Metallurgical Research Laboratory Kanchanbagh Hyderabad-500058 India 

出 版 物：《Journal of Advanced Ceramics》 (先进陶瓷（英文）)

年 卷 期：2017年第6卷第2期

页      面：139-148页

核心收录：

学科分类：0808[工学-电气工程] 1002[医学-临床医学] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 100214[医学-肿瘤学] 0702[理学-物理学] 10[医学] 

基　　金：Defence Research and Development Organization  Ministry of Defence  Government of India  New Delhi 

主　　题：ZrB2 ZrO2 zircon (ZrSiO4) composites synthesis 

摘      要：ZrB2 and ZrB2-SiC powders have been produced by reducing ZrO2 and ZrSiO4 with B4C without using any *** was added to the mixtures of (ZrO2+B4C) and (ZrSiO4+B4C).The reaction has been assisted by a floral thermite packed around the *** introducing elemental Si into (ZrO2+B4C) mixture,composite powders of ZrB2-SiC *** leaching out MgO with suitable HCl water solution,the product was analysed by X-ray diffraction (XRD) and scanning electron microscopy (SEM).The effect of Si,B4C,and Mg on the extent of formation of ZrB2,ZrB2-SiC,and other phases has been *** of nano-sized ZrB2 and ZrB2-SiC composite powders was *** adaptability of the process for bulk production was examined.