高压物理学报2011，Vol.25Issue(2)：104-110,7.
ZrN-ZrB2纳米复合材料的高压制备及性能表征
High-Pressure Synthesis and Properties Characterization of ZrN-ZrB2 Nanocomposites
摘要
Abstract
Combining high-energy ball milling and high-pressure high-temperature technique, highdense ZrN-ZrB2 nanocomposites have been synthesized using Zr and h-BN powders as raw materials.The structures of product materials were studied through X-ray diffraction, high resolution transmission electron microscopy and Raman spectroscopy measurements. The result showed that only ZrNx can be synthesized during mechanical alloying process,which can be explained by the thermodynamics and kinetics of reaction of Zr atoms with N and B atoms. ZrN-ZrB2 nanocomposites synthesized at 5 GPa and 1 300 ℃ using 10 h ball-milled powder mixture show excellent mechanical and electrical properties. The microhardness, thermal expansion coefficient and thermal coefficient of resistivity of ZrN-ZrB2 composites are 17 GPa, 7.57 × 10-6 ℃-1 and 8. 846 × 10-4 ℃ -1, respectively.关键词
氮化锆/硼化锆/高温高压/纳米复合材料Key words
ZrN / ZrB2 / high-pressure and high temperature/ nanocomposites分类
数理科学引用本文复制引用
陆凤国,邱利霞,丁战辉,郭星原,吕洋,赵旭东,刘晓旸..ZrN-ZrB2纳米复合材料的高压制备及性能表征[J].高压物理学报,2011,25(2):104-110,7.基金项目
国家自然科学基金(20871052,11074093) （20871052,11074093）
吉林省自然科学基金(20101555) （20101555）
教育部高校基本科研业务费专项资金(421033361411) （421033361411）
