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1.
稀土材料的重要应用   总被引:2,自引:0,他引:2  
庾晋  子荫 《有色设备》2002,(6):17-20
介绍了近年来涌现出来的重要稀土材料,光学玻璃、稀土发光材料、稀土陶瓷材料、稀土磁性材料,稀土贮氢材料,稀土硼化物,稀土发热材料,稀土无机颜料和涂料,稀土塑料等。  相似文献   

2.
稀土固体废物的成因、成分分析及综合利用   总被引:1,自引:0,他引:1  
根据稀土工业产业链实际情况,就产生批量固体废弃物的工艺过程及稀土材料进行了讨论,对稀土湿法冶金渣、电解渣、铁基稀土永磁材料、钴基稀土永磁材料、稀土贮氢材料、稀土抛光粉、稀土催化剂等固体废物的成因、生成量、成分分析及综合利用进行了综述,并对稀土固体废物的处理及管理提出了建议。  相似文献   

3.
前面已介绍了稀土磁性材料这一大类材料中的稀土永磁材料、稀土磁制冷材料、稀土超磁致伸缩材料及其应用。下面简单谈谈稀土巨磁阻材料及其应用。  相似文献   

4.
稀土在合金中应用的新进展   总被引:2,自引:0,他引:2  
稀土在合金中应用的新进展北京有色金属研究总院钟俊辉稀土在有色合金和功能材料中的应用,近年来发展很快。除了稀土贮氢合金、稀土永磁材料之外,稀土铝镁合金、稀土光磁盘材料以及稀土超磁致伸缩材料取得了迅速的发展,促进了稀土在合金中应用的开发。随着研制工作的深...  相似文献   

5.
稀土功能材料综述   总被引:3,自引:1,他引:2  
稀土元素被誉为二十一世纪新材料的宝库,因其在电、光、磁等方面具有独特性质,故在功能材料领域获得了广泛的应用.文章介绍了稀土磁性材料、稀土发光材料、稀土催化材料、稀土贮氢材料、稀土超导材料的研究及其应用进展.  相似文献   

6.
稀土材料广泛应用于节能环保、国防军工和高新材料等各个领域,本文介绍了机械球磨法的原理和特点,综述了该方法在超细稀土氧化物粉体、稀土功能材料以及稀土合金化材料制备中的研究现状,最后对该技术在稀土材料的制备领域进行了展望,指出了机械球磨法在稀土材料制备方面的研究方向。  相似文献   

7.
《稀土》2015,(6)
稀土钒酸盐体系发光材料是最早应用于显示和照明领域的稀土发光材料。本文论述了稀土钒酸盐基质材料的基本特征,总结了传统稀土钒酸盐体系发光材料的制备方法及典型应用。对新型稀土钒酸盐体系发光材料的制备方法、发光机理及其应用前景进行了综合分析。  相似文献   

8.
稀土润滑材料的摩擦学研究   总被引:6,自引:0,他引:6  
薛茂权  熊党生  闫杰 《稀有金属》2004,28(1):248-251
随着稀土材料科学和摩擦学研究的发展 ,近来许多材料工作者注意到了稀土润滑材料的摩擦学性能 ,并开展了一些积极的研究工作。主要讨论了稀土合金、稀土无机化合物、以及稀土配合物的摩擦学研究和作用机制 ,并对稀土润滑材料今后的发展提出了一些建议  相似文献   

9.
稀土磁性功能薄膜材料由于具有优异的性能和巨大的需求潜力,将在很多领域中发挥重要的作用。本文对各种稀土磁性功能薄膜材料进行了较为系统的综述,重点评述了稀土永磁薄膜、稀土磁光薄膜、稀土磁泡薄膜和稀土磁致伸缩薄膜等稀土磁性功能薄膜材料的研究状况和最新进展。最后指出了稀土磁性功能薄膜材料存在的问题,并展望了它的应用前景。  相似文献   

10.
论稀土材料的现状与发展   总被引:2,自引:0,他引:2  
对我国稀土材料产品进行了概述,并与世界水平进行对比叙述了稀土永磁材料、稀土汽车尾气净化催化剂、稀土荧光粉、稀土钨电极的现状及国内外发展状况,存在问题,对发展稀土新材料提出了见解。  相似文献   

11.
Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

12.
13.
The rates of infection of two methods of external ventricular drainage in use at Atkinson Morley's Hospital--namely, (a) percutaneous drainage with Rickham reservoirs and (b) tunnelled ventriculostomies--were compared in this retrospective review. Percutaneous drainage of CSF with Rickham reservoirs was associated with a 27% rate of infection as identified by positive microbiological cultures; tunnelled ventriculostomy catheters had a 10% infection rate. The difference in the infection rate between the two methods was statistically significant (P < 0.015). Other variables examined, including the age and sex of the patients and the reasons for ventricular drainage, were not associated with an increased rate of infection. Most infections from either method were caused by a coagulase negative staphylococcus. The average duration of ventricular drainage before identification of positive cultures was 5.7 days for Rickham reservoirs and 6.0 days for ventriculostomies.  相似文献   

14.
The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.  相似文献   

15.
Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.  相似文献   

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18.
鲁迅先生一生热爱美术作品,对版画中木刻兴趣尤甚.<野草>作为其"写心之作",亦呈现出一些与木刻版画一致的审美特征:一是具有木刻版画的色彩特征,多对比、多冷色,有阴郁的美感;二是具有木刻版画的力度特征,环境描写、人物刻画处处刀锋毕现,遒劲有力,有一种"力之美".  相似文献   

19.
张兴强  叶运福 《冶金设备》2005,(6):71-72,47
针对四辊破碎机车刀架车削中存在的几个问题,详细介绍了电动车刀架的结构和工作原理,建立主要设计参数的数学表达式,并进行适当的分析。改造后,这种电动车刀架运行平稳、可靠、方便、省力,取得了预期的效果。  相似文献   

20.
转炉炉壳热应力分析   总被引:5,自引:1,他引:4  
任学平  郭志强  邹家祥 《炼钢》2001,17(6):47-49
根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。  相似文献   

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