thermal initiation

The results show that the resistances thermal fatigue crack initiation and propagation in steel are reduced due to the Carburizing and nitriding, and nitrogen has the prominent effect.

结果表明，表面增碳及渗氮均使钢的热疲劳裂纹萌生及扩展抗力降低，渗氮尤为显著。

互联网摘选

Prediction of thermal fatigue crack initiation cycles of die for high speed hot die forging

高速热模锻模具热疲劳裂纹萌生期预测

互联网摘选

Thus this indicates that the thermal initiation theory is not applicable to describe the behaviors of shock initiation of NM.

这表明，热起爆理论不适于描述硝基甲烷的冲击起爆行为。

互联网摘选

The results showed that the main grafting reaction was transfer of radicals to the hydrogen atoms in the allyl position of rubber chains when thermal initiation.

结果表明，热引发时，接枝机理主要是自由基夺取橡胶链上α氢原子；

互联网摘选

Thermal initiation in the stable free radical polymerization of styrene

苯乙烯稳定自由基聚合过程中的热引发作用

互联网摘选

The results of TGA indicate that the blends possess high thermal stability with initiation decomposition temperatures of about 400 ℃.

TGA结果表明共混树脂固化物具有很好的热稳定性，其起始热分解温度接近400℃。

互联网摘选

The effects of initiators and thermal initiation on a reaction rate, molecular weight and molecular weight distribution of products in a mass polymerization of styrene were investigated.

考察了热引发方式和不同种类、浓度下的引发剂引发方式在苯乙烯的本体聚合中对聚合反应速率和产品的分子量及其分子量分布的影响。

互联网摘选

A comparison between initiators and thermal initiation in the mass polymerization of styrene

引发剂引发与热引发在苯乙烯本体聚合中的比较

互联网摘选

The results reveal that the thermal shock crack initiation resistance of the materials was slightly less than that of SiC monolithic ceramics, but while the crack propagation resistance was much higher than that of SiC monolithic ceramics.

这表明：与SiC块体陶瓷相比，SiC/BN层状陶瓷的热震裂纹形核阻力略有降低，但热震裂纹扩展阻力却大大提高。

互联网摘选

The hot wear mechanism, thermal fatigue crack initiation and propagation as well as the effect of the micro-structures and properties of materials are studied by means of optical metallograph, SEM, image analysis, debris analysis and high temperature hardness test.

结合光学金相、电子扫描、图象分析、磨屑分析、高温硬度试验等方法，对轧辊材料的磨损机制，热疲劳裂纹的萌生和扩展以及材料组织性能产生影响的原因进行了分析说明。

互联网摘选

The carboxyl nitrile latex and carboxyl butyl latex were synthesized by thermal decomposition initiation system and low soap emulsion system with butadiene, acrylonitrile and methyl methacrylate as main monomers and carboxylic acid as functional monomer.

以丁二烯、丙烯腈或甲基丙烯酸甲酯为主要单体，羧酸为功能单体，用热分解引发体系和低皂乳化体系制备了人造革基布用羧基丁腈胶乳和羧基丁酯胶乳。

互联网摘选

The test results show that retardation of thermal shock crack initiation and propagation and higher thermal shock resistance property were displayed in graded thermal barrier coating.

实验结果表明，梯度热障涂层能明显延缓热震裂纹的形成和扩展，具有较高的抗热震性。

互联网摘选

Based on the thermal stress formula and thermal crack initiation criterion, a numerical simulation method of solidification is proposed to predict the hot crack position.

应用凝固过程中凝固层内应力表达式及热裂纹萌生部位的判别准则，提出了依据凝固进程数值模拟的结果预测厚大铸件热裂纹的方法。

互联网摘选

Theoretical calculations have been used to investigate the thermal CO2 reforming of CH4, It is found that the first step is the CH4 dissociation into CH3 and H radicals for the chain initiation reaction.

在CO2热重整CH4反应机理的研究中发现反应的链起始步骤是CH4解离生成CH3和H自由基。

互联网摘选