中南大学学报（自然科学版）2011，Vol.42Issue(4)：884-887,4.
烧结气氛对17Ni/(10NiO-NiFe2O4)金属陶瓷物相组成及力学性能的影响
Effect of sintering atmosphere on phase composition and mechanical properties of 17Ni/(10NiO-NiFe2O4) cermet
摘要
Abstract
17Ni/(10NiO-NiFe2O4) cermet materials were fabricated by cold pressing sintering method in different atmospheres, and their phase composition, microstructure and mechanical properties were also studied.The results show that 17Ni/(10NiO-NiFe2O4) cermet can be obtained by sintering in low vacuum or atmosphere with oxygen content (volume fraction) of 2 × 10-5, 2 × 10-4, 2 × 10-3 and 1 × 10-2, and the oxygen content affects on the phase composition of materials greatly.Cermet tends to have a high content ofNiO sintered in atmosphere with low oxygen content, and a high content of metallic phase sintered in atmosphere with high content of oxygen.When the oxygen content of atmosphere amounts is 2× 10-4, the grain size of 17Ni/(10NiO-NiFe2O4) cermet is 2.477 μm, and bending strength is 116.55 MPa,which can withstand 7 times of thermal shock tests at 960 ℃.关键词
NiFe2O4/金属陶瓷/力学性能/烧结气氛Key words
NiFe2O4/ cermet/ mechanical property/ sintering atmosphere分类
矿业与冶金引用本文复制引用
刘风琴,田忠良,刘恺,陈端,赖延清,李劼..烧结气氛对17Ni/(10NiO-NiFe2O4)金属陶瓷物相组成及力学性能的影响[J].中南大学学报（自然科学版）,2011,42(4):884-887,4.基金项目
国家重点基础研究发展规划项目(2005CB623703) （2005CB623703）
国家高技术研究发展计划("863"计划)项目(2008AA030503) （"863"计划）
