可控膨胀Zr2P2WO12/Ni复合材料的制备及性能

人工晶体学报, 2016, 45(2): 388-392.

可控膨胀Zr2P2WO12/Ni复合材料的制备及性能

李伟杰 ^1, , 王朝勇 ^2, , 戚瑞琼 ^3, , 姚宁 ^4, , 晁明举 ^5, , 梁二军 ^6,

1.郑州大学物理工程学院材料物理教育部重点实验室,郑州,450052

2.郑州大学物理工程学院材料物理教育部重点实验室,郑州450052;河南城建学院数理学院,平顶山467036

3.郑州大学物理工程学院材料物理教育部重点实验室,郑州,450052

4.郑州大学物理工程学院材料物理教育部重点实验室,郑州,450052

5.郑州大学物理工程学院材料物理教育部重点实验室,郑州,450052

6.郑州大学物理工程学院材料物理教育部重点实验室,郑州,450052

基金项目: 河南省重点科技攻关项目(142102210073)

关键词：化学共沉淀 , 可控热膨胀材料 , Zr2P2WO12/Ni

Synthesis and Characterization of Controlled Thermal Expansion Composites Zr2P2WO12/Ni by Co-precipitation Method

Keywords： co-precipitation , controlled thermal expansion composite , Zr2P2WO12/Ni

采用化学共沉淀法制备陶瓷Zr2P2WO12 (ZWP)和金属Ni复合材料粉体,烧结过程中还原剂柠檬酸将金属Ni2+还原.粉体中ZWP粒径100～200 nm,金属Ni粒径50～100 nm,且混合均匀.复合材料块体的制备采用冷压和放电等离子体烧结(SPS)两种方法,结果表明SPS制备的样品具有更好的块体致密度,可达84％以上.研究表明,通过调节Ni离子的掺杂比例可制备出热膨胀系数从负值到正值的可控热膨胀系数复合材料.当Zr2P2WO12/Ni的摩尔比为5∶5时,制备出的材料为近零膨胀复合材料.

参考文献

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