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Thermal plasma technique for production of doped lanthanum chromite powders for semiconducting refractory ceramics

机译:热等离子体技术生产半导体耐火陶瓷掺杂亚铬酸镧粉末

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摘要

In this paper the technique for production of calcia and alumina doped lanthanum chromite powders using nitrate solution injection plasma synthesis in triple torch reactor was examined. The oxide powder synthesized were characterised with sedimentation analysis, thermogravimetry, XRD, EDXRA, TEM, microprobe analysis. Resulting La-Ca-Al-Cr-O-ceramics in p-type semiconducting with electricla conductivity near 2000 Ohm~(-1) m~(-1) at 1100 K and contains the orthorhombic perovskite phase.
机译:本文研究了在三重炬管反应器中利用硝酸盐溶液注入等离子体合成生产氧化钙和氧化铝掺杂的亚铬酸镧镧铬矿粉的技术。通过沉淀分析,热重分析,XRD,EDXRA,TEM,微探针分析对合成的氧化物粉末进行了表征。所得的La-Ca-Al-Cr-O-陶瓷为p型半导体,在1100 K时的电导率接近2000 Ohm〜(-1)m〜(-1),并包含正交晶钙钛矿相。

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