1) polycrystalline quasicrystal
多晶准晶材料
2) quasicrystal
准晶材料
1.
5B3 powder sintered quasicrystals were analyzed by means of Scanning Electron Microscopy (SEM), Xray Diffraction (XRD) and Differential Thermal Analysis (DTA).
用SEM、XRD和差热分析仪等对粉末烧结Al Cu Fe B准晶材料的组织结构及其相结构的稳定性、比热容、耐蚀性进行了测试。
3) quasicrystals
准晶材料
1.
The results showed that the friction and wear behavior of the quasicrystals was greatly influenced by the temperature.
研究了温度对准晶材料 /类金刚石 ( DL C)涂层在干摩擦条件下的摩擦特性 ,采用扫描电子显微镜、X射线衍射仪及表面分析仪等对准晶材料表面形貌和晶体结构进行了观察与分析 。
2.
5 B 3 quasicrystals/coating of the Dia-mond-Like Carbon(DLC)is carried out by self-made tribometer under different conditions.
对准晶材料/DLC涂层在干摩擦条件下的摩擦磨损特性进行了研究。
4) quasicrystalline materials
准晶材料
1.
Progress in research on application of quasicrystalline materials is reported,including surfacemodification and dispersion strengthening phase in structural materials,with emphasis on their superior properties over conventional materials and their application potentialities.
就准晶材料作为表面改性材料和作为结构材料增强相两个方面,介绍了准晶材料在国内外应用研究的进展,强调了其特殊的性能在替代传统用材上的优势和应用潜力。
2.
These coatings exhibit the excellent properties of amorphous, nanocrystalline and quasicrystalline materials in comparison with tranditional crystalline coatings.
热喷涂亚稳态复合涂层能克服许多亚稳材料不易直接成形的不足,有效发挥非晶、纳米晶和准晶材料的特殊功效。
5) polycrystalline materials
多晶材料
1.
Based on the principle of contrasting referring to Ag_ 2 Se-Ga_ 2 Se_ 3 pseudobinary phase diagram, AgGa_ 1-x In_ x Se_ 2 polycrystalline materials with a portion of In content were synthesized by mechanical and temperature oscillation method.
根据Ag2Se-Ga2Se3赝二元相图,对AgGa1-xInxSe2按同成分点配料,通过机械和温度振荡的方法合成出AgGa1-xInxSe2多晶材料。
2.
The main research methods,test results,influencing factors and the micro-mechanism of two types of scale effects,namely,"smaller is stronger" and "the smaller the more weak",occurred in micro-components of polycrystalline materials are particularly summarized.
结论是:微构件内、外尺寸的耦合关联影响控制了尺度效应和与其相对应的材料内在特征长度,今后如能进一步探明微构件外形结构尺寸、晶粒尺寸和材料内在特征长度与其性能异变之间的制约关系,基于晶体学和高阶理论建立较全面、系统的力学分析模型,将有可能揭示微构件多晶材料内在特征长度的微结构控制的机理,进而实现通过调控材料的微结构控制微构件的宏观力学性能。
3.
A new approach for investigation on the in-plane displacement on a grain scale for polycrystalline materials is proposed in this paper based on coupling digital image correlation method and a new type of microscope-digital microscope.
结合数字散斑相关方法和一种新型的显微镜数码显微镜,提出了一种测量多晶材料晶粒尺度面内变形的新方法,并通过零变形校准实验、重聚焦实验和平移实验等一系列验证实验分析了该方法的精度和实用性。
6) polycrystalline material
多晶材料
1.
One of the main trends towards the exploitation of sensing materials is to develop the single crystal materials into polycrystalline materials and amorphous materials.
对敏感功能材料研究开发所呈现的主要趋势之一就是从单晶材料向多晶材料和非晶材料方向过渡发展。
2.
Through the detailed analysis of the machining mechanism of micro-milling polycrystalline materials,a micro-milling model is developed,where the effects of minimum chip thickness and metal phase on the mechanism are focused on.
对微铣削多晶材料的加工机理进行了详细分析,建立了相应的加工过程模型。
3.
In order to research in the novel laser crystal of molybdate,the compound-anion polycrystalline material Yb3+:NaBi(WO4)(MoO4) was synthesized by solid state reaction.
为了研究新型的钼酸盐激光晶体材料,采用熔盐法固相反应合成了混酸盐多晶材料Yb3+:NaBi(WO4)(MoO4)。
补充资料：多晶屈服
多晶屈服
yielding of polycrystal
duoJJng qufu多晶屈服(yielding of polyerystal)多晶金属所受应力超过一定值时所发生的、由弹性变形过渡到塑性变形的现象。多晶体的屈服可以在晶内或晶粒间进行，变形的基本方法为滑移或孪生以及晶粒的移动和转动。晶粒的移动和转动可以促进晶粒变形条件的改善，但也是造成晶间联系破坏、出现内部显微裂纹的根源。 多晶屈服时一个晶粒的变形必须与相邻晶粒的变形相协调，以克服晶粒间界对滑移的阻碍作用及多个滑移系同时启动时位错的相互干扰。多晶体屈服应力比单晶体的高，差别程度主要取决于晶体点阵类型与晶粒尺寸。 (曹乃光)
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参考词条