The formation mechanisms of different initial frost crystal shapes were explained from a crystal growth point of view.
从晶体生长角度解释了各种形状初始霜晶的形成机制;利用界面稳定性理论分析指出:温度场和水蒸气浓度场是影响霜晶生长的主要因素,两者的竞争耦合作用是产生相变和霜晶各种界面演变现象的根本原因;建立了霜晶生长速率与霜晶表面温度及水蒸气分压力相关的数学模型。
Effect of NaCl and LiF on liquidus temperature of molten cryolite-based aluminum electrolyte;
NaCl和LiF的添加对铝电解质初晶温度影响的研究
Study on new device for testing liquidus temperature of aluminium electrolyte and mathematical model of liquidus temperature;
铝电解质初晶温度测定装置及初晶点数模的研究
Study on direct determination of liquidus temperature of aluminium electrolyte;
直接测定铝电解质初晶温度的研究
Control of the size of primary silicon in wrought Al-Si alloy;
Al-Si系变形铝合金初晶硅尺寸的控制
Morphologies of primary silicon particles have significant influences on properties of hypereutectic Al-Si alloys, therefore the nucleation and growth mechanism and morphologies evolution mechanism of primary silicon particle have been widely investigated and become a major issue.
初晶硅形态对高硅铝合金性能具有重要影响,其形核长大机制、形态演化机制是高硅铝合金的主要研究内容之一;尽管已有诸如变质剂处理、半固态搅拌、快速凝固、电脉冲处理等可改善初晶硅形貌的方法,但目前要完全实现控制初晶硅形态并使之球化,使用现有工艺较为困难。
The influences of trace addition of Na, Sr, or P on the nucleation and growth of primary silicon in Al22%Si alloy fabricated by high pure aluminum and silicon, in which the primary silicon mainly appeared in five petal starshaped morphology, were studied.
在高纯原料配制的、以五瓣星状初晶硅形态为主的Ａｌ－２２％Ｓｉ高硅过共晶合金中加入少量的Ｎａ、Ｓｒ、Ｐ变质或细化元素，考察了它们对初晶硅形态的影响。
Effects of P Modification on Primary Si in Hypereutectic Al-Si Die Casting Alloy with Different Cooling Rates;
P变质对不同冷速下过共晶压铸铝合金初晶Si的影响
Effects of Magnetic Field and Modification on Primary Si Morphology and Distribution;
磁场和变质处理对初晶Si形状和分布的影响
Strong magnetic field method was adopted to solve the problems,such as the loss of efficiency after re-melt,the short effective time after Na modification,and the primary Si distributed unevenly after P modification.
为解决Al-Si合金存在的Na变质重熔失效和有效时间短及P变质处理后初晶Si偏聚问题,利用施加强磁场的方法,分别对亚共晶Al-6%Si合金和共晶Al-12。
Influence of rare earth and Ni content on the primary crystallization of Al-Gd-Er-Ni metallic glass;
稀土和镍含量对Al-Gd-Er-Ni金属玻璃初晶化的影响
The influence of Be replacement for Al on the glass forming ability(GFA)and primary crystallization of Al85Gd7Ni8alloy was investigated.
研究了Be部分替代Al对Al85Gd7Ni8合金的玻璃形成能力和初晶化的影响。
Glass Transition and Primary Crystallization of Aluminum-Based Amorphous Alloy;
铝基非晶态合金的玻璃转化及初晶化行为
Liquidus temperature of actual aluminum electrolyte samples was measured directly.
直接测定了铝电解质实际样品的初晶温度。
Synthesis of Zirconium Phosphate Crystals and Initial Exploring of XRPD Crystal Structure Solving Method;
磷酸锆晶体的合成及XRPD法解析晶体结构初探
The Preliminary Research on Whisker Orientation Arrangement and Cutting Performance of Photosensitive Resin Bond SiC Whisker Whee
SiC晶须砂轮的晶须定向及切割性能的初步研究
Analysis of the first crystal Attitude error in a double-crystal monochromator
双晶单色仪第一晶体初安装姿态误差分析
The Numerical Model of Original Shell in Grooved-Mold;
沟槽内壁结晶器初生坯壳的数学模型
From Indulgence to Light Mindedness-Exploring Che Pei-jing s True Motives in Her Literary Creation;
从“沉湿”到“轻灵”——车培晶创作心迹初探
Preliminary Exploration on the Dielectric Properties of AgGaGeS_4 Crystal
AgGaGeS_4晶体介电性能的初步探讨
Influence of temperature on Raman spectra of liquid crystal 5CB
温度对液晶5CB拉曼光谱影响的初探
Stress Calculation Model of Initial Shell in CSP Mold
CSP结晶器内初生坯壳的应力计算模型
Crystallization of neural RNA binding protein Musashi1 RRM1
神经系统RNA结合蛋白Musashi1 RRM1的初步结晶
INFLUENCE OF ANTIMONY ON SECONDARY DENDRITE ARM SPACING OF PRIMARY AUSTENITE OF HYPOEUTECTIC GREY IRON
锑对亚共晶灰铁初生奥氏体二次枝晶臂间距的影响
The differences in crystallinity between the HDPE after crystallized from the melt by cooling andthose obtained directly from the reactor were also studied and discussed.
观测聚乙烯熔体冷却结晶后的结晶度与初生态聚乙烯结晶度的差别。
Early stage phase separation kinetics in flexible polymer/liquid crystal mixture
柔性高分子/液晶共混体系的相分离初期动力学
Clinical accommodative status study of the accommodative foldable intraocular lens
可调节折叠人工晶状体临床应用初步报告
Study of the Blood Flows by Lattice Boltzmann Method;
晶格玻尔兹曼方法对血液流的初步研究
Experimental Investigations on Initial Deformation Behaviors of Single Crystal Copper in Nanoindentation;
单晶铜纳米压痕初始塑性变形行为实验研究
A Primary Study on the Mechanisms of Calculus Crystal Transport by Macrophage in Kidney;
巨噬细胞对肾结石晶体转运机制的初步研究