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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Bi2O3与Sb2O3掺杂对ZnO力学性能的影响
, PP. 1265-1270
Keywords: ZnO,Bi2O3,Sb2O3,掺杂,复合陶瓷变阻器
Abstract:
设计、制备了三个系列(不同Bi2O3与Sb2O3掺杂浓度)的ZnO基复合材料.力学性能测试的结果表明,Bi含量(2%,原子分数)保持不变,随Sb含量(在合适的剂量范围内)的增大,由于基质ZnO晶粒减小,陶瓷致密度增大,所得材料的模量、抗弯强度以及断裂韧性均增大;Sb含量(3%,原子分数)保持不变,随Bi含量的增大,由于基质ZnO晶粒增大、陶瓷致密度减小,所得材料的模量、抗弯强度以及断裂韧性均减小.在设计组成范围内材料的最佳力学性能约为弹性模量114GPa,弯曲模量115GPa,抗弯强度120MPa,断裂韧性1.87MPa×1/2.
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