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MICROSTRUCTURAL CHARACTERIZATION OF Nd_(34)Fe_(60)O_(6) ALLOY

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.

关键词: Nd-Fe-O alloy , null , null

Correctness and completeness of the theory of bio-energy transport Reply to the comments on "The theory of bio-energy transport in the protein molecules and its properties"

Physics of Life Reviews

Commentaries by Philip W.T. Pong, Nongyue He, S.D. Liang, Tao Song, Yuri Gaididei and Sergey Volkov and Alexander Y. Grosberg on my review article (Pang, 2011 [1]) are answered. The validity of Davydov's mechanism of bio-energy transport, the completeness of theory, outstanding problems, the normalization and validity of wave function of the system in Pang' model as well as other related problems are elucidated in detail. (C) 2011 Elsevier B.V. All rights reserved.

关键词: biological temperature;3 channels;soliton;model

磷在12Cr1MoV钢中非平衡晶界偏聚动力学的实验研究

李莉 , 李庆芬 , 郑磊 , 徐庭栋 , 杜善义

钢铁研究学报

以工业用12Cr1MoV钢为研究对象,通过俄歇电子能谱分析方法(AES),对磷在恒温过程中的非平衡晶界偏聚浓度进行了测定.获得的磷在钢中的非平衡晶界偏聚动力学曲线直接验证了非平衡晶界偏聚动力学理论中的Xu-Song模型.

关键词: 晶界偏聚 , 临界时间 , 扩散 ,

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