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- crystalline grain fracture 晶粒断口
- Sodium fluoride destroys metal crystalline grain, forming the small cellular structure, it convenient for membrane imbed among them. 氟化钠破坏金属晶格形成微小的蜂窝状结构,从而便于涂膜嵌入其中,达到增强涂膜附着力的目的。
- FONG C W and MOY B K. Ballistic criteria for propellant grain fractur e[J]. J Ballistics 1982,6: 1410. 黄洪勇;王泽山.;两种工艺制造的低温感包覆火药性能的比较研究[J]
- It has been proved that the pigment is fluorite solid solution and the size of its crystalline grain is 17.90nm from the analysis of XRD, SEM, EDS and CIE parameters. XRD;SEM;EDS;CIE色度分析的研究结果表明;该红色稀土颜料为萤石型固溶体;其晶粒尺寸为17.;90nm。
- Ceramic powder of nano grade is an aggregate composed of extremely fine crystalline grain and numerous of atoms lying in the defective center of crystalline region. 纳米级陶瓷粉是由极细的晶粒和大量处于晶界内部缺陷中心的原子所构成的集合体。材料粒径变小,将引起纳米材料性质的变化。
- The zirconium takes effect in making crystalline grain smaller、deoxidation、desulphurization、dephosphorization,etc.It can improve the strength、tenacity of the steel. 锆具有细化晶粒、脱氧、脱硫、脱磷等作用,可以提高钢材的强度和韧性,特别对深冲钢板可以提高其延伸率;
- The crystalline grain size is uniforn, and the size distribution of the powder is narrow.The prepared nanosized TiO2 powders have high-purity and their phase structure is single anatase phase. 结果表明:随着沉淀剂浓度的不同,可制备出不同粒径的二氧化钛纳米颗粒,其粒径均匀,尺寸分布较窄,纯度高,晶型皆为单一的锐钛矿型。
- It is proved that the size of crystallin grain is the main factor having effect on the mechanical intensity of material,and the existence of microstructure defect can improve the tenacity of material. 结果证明,晶粒大小是影响材料力学强度的主要因素,结构缺陷的存在可以提高材料的断裂韧性。
- The results show that the crystallinity rise,crystalline grain becomes more regular and the fiber radial size grows after DMF treatment. 结果表明:DMF处理后纤维结晶度提高,结晶趋于规整,长时间处理结晶度下降;
- With a chemical formula of NaHCO3, baking soda is a white powder with crystalline grains. 化学成分是NaHCO3。小苏打是一种晶粒状的白色细粉末;
- Microstructure analyses of tensile samples by SEM show that crystalline grains are very fine and have the orientated solidification structures. 拉伸试样显微组织晶粒细小,具有定向凝固特征。
- Numerical Simulation of Sensitivity of Grain Fracture 火药破碎敏感度的数值计算
- The original phase crystalline grains with roundish configuration are merged in fine eutetic crystal, and this kind of microstructure is apparently different from conventi... 半固态非枝晶组织是在晶体正常的形核和长大过程中,受彻体力强烈的混合抑制作用而形成的。
- The Microstructures of Al-silicate short fibber/ZL109 composites by liquid infiltration method were well distributed and had no casting defects,the crystalline grains were fined. 用压力浸渗法制备的硅酸铝短纤维/ZL109复合材料组织均匀,无铸造缺陷;基体晶粒明显细化。
- Prospects of Application of Fractal Theory in Research of Grain Fracture 分形理论在火药破碎研究中的应用展望
- The ASB in the saw-tooth chip is a kind of fine, close and extruding slide deform organization.The metal crystalline grains which adjacent the ASB inlay in the ASB or change into a part of it. 锯齿形切屑的绝热剪切带是一种致密的挤压滑移变形组织,与其相临的金属晶粒有的镶嵌在其边缘,有的一部分参与到绝热剪切带的内部。
- The grain crop has gone down this year. 今年的粮食作物产量下降了。
- Perhaps there is a fracture in the water pipe. 也许水管有裂缝了。
- The fracture of his left leg is very serious. 他的左腿骨折情况很严重。
- The company is an international trader in grain. 这家公司是国际粮食贸易公司。