复相的

The educt is boricacid on the surface of the composite, it is believed that oxide reaction takes placeduring the sintering of 〓-BN composite, and part of oxide outgrowth -〓has been left in the sintering body.

通过分析〓-BN复相导电陶瓷表面析出物及〓粉和BN粉的氧化产物，揭示〓-BN复相导电陶瓷中残留的氧化产物——氧化硼是〓-BN复相导电陶瓷引起潮解的主要原因。

The steel selected for this investigation is spring steel 50CrVA for automobile in this paper,the appropriate duplex microstructure of lower bainite and martensite was obtained through isothermal quenching and low temperature tempeing heating treatment,then the effect of duplex microstructure and tempered troostite on strength-toughness of spring steel 50CrVA is compared.

以汽车用弹簧钢50CrVA为研究对象，通过等温淬火+低温回火热处理工艺获得适当比例的回火马氏体和下贝氏体的复合组织，并在此基础上比较复相组织和回火屈氏体对弹簧钢50CrVA 强韧性的影响。试验结果表明：在弹簧要求的HRC硬度在50~54范围内，在910℃保温30 min+360℃等温20 min淬火+300℃保温60 m in回火工艺得到复相组织的强韧性最好

There were many researches on Al2O3-based diphase ceramics, but few of them focused on the methods of the fracture toughness measurement of alumina-based diphase ceramics.

见于报道的Al_2O_3基复相陶瓷的研究虽多，但是关注于氧化铝基复相陶瓷断裂韧性测试方法上的研究却并不多见。

Hot isostatically pressed nano-ceramics of monophasic SiC and Si3N4/SiC composite were studied,and the phase composition and ndcrostructure were characterized by XRD, TEM and HREM.

采用高温等静压工艺，制备了纳米结构的单相SiC及Si3N4／SiC复相陶瓷，并通过X射线衍射分析、透射及高分辨电镜对其相组成及结构进行了表征。

The effects of BN content on the thermal conductivity, hardness and microstructure of AlN-BN composite ceramics prepared by ceramic injection molding and pressureless sintering, as well as the rheological characteristics of the mixtures were discussed.

采用粉末注射成形和无压烧结相结合的工艺制备AlN-BN复相陶瓷，讨论了AlN-BN混合料的流变性能以及BN含量对复相陶瓷热导率、硬度以及显微组织的影响。

The ionic transport number of more than 0.9 indicates a pure protonic conductor at temperature range of interest.

对比单相材料BaZr_(0.9)Y_(0.1)O_(2.95)，复相材料的直流电导率提高了一个数量级以上，接近10~(-2) S/cm，离子传导系数在0.9以上，是纯质子导体。

However, when the amount of Bi dopant is large enough, a new pyrochlore phase of appears in the thin film.

当Bi掺杂量很大时，薄膜不再以单一钙钛矿相存在，而是得到了钙钛矿和焦绿石相共存的复相薄膜。

The results shows that the flow characteristics of SiC-AlN granulated powder is obviously promoted after spray drying and a suitable particles grade match. With the increasing of pressure, the density of green body increases by the style of ladder at the pressure range of 4080 MPa, 80160 MPa and 160220 MPa, the green body is uniform and densification without hard pelleted particles above 160 MPa. The pressureless sintering SiC-AlN multiphase ceramic possesses superior sintering properties and mechanical properties. It is due to the rampart formation of AlN to SiC grain growth and the reaction of SiC and AlN to form 2H solid solution. It results in the grain fining, crack expansion producing bypass and deflection, fracture section producing tearing-open and pulling-out effects, which cooperatively improves the strength and fracture toughness of the multiphase ceramics.

结果表明：喷雾造粒后，复合粉体的流动特性显著提高，粒度级配合理；随着压强增加，坯体密度在40~80、80~160和160~220 MPa范围内呈现阶梯式增长，160 MPa以上成形后素坯均匀致密，无硬球颗粒存在；无压烧结SiC-AlN复相陶瓷具有优越的烧结性能和力学性能，这是由于AlN对SiC晶粒形成生长势垒，并反应生成2H型固溶体，从而细化晶粒，导致裂纹扩展产生了绕道与偏转效应，呈现晶粒撕裂与拨出现象，协同改善了复相陶瓷的强度及断裂韧性。

Then, the chemical compatibilities of the possible composition systems of the composite ceramic tool materials are computed and analyzed by means of the computer programming.

定性分析了复相陶瓷刀具材料的物理相容性，认为各组分材料的热膨胀系数和弹性模量的最优匹配，是获得同时具有较高的抗弯强度和断裂韧性的复相陶瓷刀具材料的必要条件之一。

Course Content: The Basic Laws of Thermodynamics, Thermodynamic Properties of Mass, Phases Equilibrium of One Gas System, Phases Equilibrium and Chemical Equilibrium of Gases System, Thermodynamics of Irreversible Processes, Description of Microstates, Boltzman Statistics, Bose-Einstein Statistics and Fermi-Dirac Statistics, Ensemble theory, The Statistical Theory and Fluctuation Theory for Nonequilibrium States

课程内容：热力学的基本定律、均匀物质的热力学性质、热动平衡判据、单元系的复相平衡、多元系的复相平衡和化学平衡、不可逆过程热力学、微观运动状态的描述、玻尔兹曼统计理论、玻色－爱因斯坦统计和费米－狄拉克统计理论、系综理论、非平衡态统计理论和涨落理论。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。