CHEN Zhongmin
,
WANG Naxin
,
SONG Xiaoping
,
WANG XiaotianXi'an Jiaotong University
,
Xi'an
,
China Manuscript received 16 December
,
1993
金属学报(英文版)
The microstructure of Nd_(34)Fe_(60)O_(6) alloy was characterized by means of scanning electron microscope. Auger electron multiprobe, X-ray diffraction, differential thermal analyses and thermomagnetic analyses. It is found that the equilibrium microstructure of the alloy is composed of a Nd_(2)Fe_(17) matrix, an oxygen-containing Nd-rich phase and a Nd-Fe-O ternary ferromagnetic phase (referred to T_(1)). This phase forms via a peritectic reaction between Nd_(2)Fe_(17) and Nd-rich phase at 840 ℃ . Its composition is around Nd_(36)Fe_(54)O_(10) and Curie temperature 180℃ . The X-ray diffraction peaks can be indexed on a tetragonal cell with lattice parameter of a = 0.771nm and c = 2.228nm. This stable phase is believed to be transformed from the metastable phase (A_(1)) in Nd-Fe binary system as a result of oxygen introduced.
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Nd-Fe-O alloy
,
null
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中国腐蚀与防护学报
<正> 由中国科学院金属腐蚀与防护研究所主办的《腐蚀科学与防护技术》,自1989年创刊以来,在广大读者、作者和有关人士的关心、爱护与支持下,刊物的质量和水平逐步提高,深受腐蚀界的欢迎,订户逐年增加。现经国家科委批准,从1992年起向国内外公开发行。它的任务是报导腐蚀与防护方面的科研成果;反映国内外腐蚀科技发展动态;介绍防腐工作中的先进技术和经验。适于科研、教学。工程技术人员及从事腐蚀与防护工作的管理人员和工人同志们阅读参考。公开发行后,仍为季
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