高熔点的

The carbon based materials have low electron affinity even negative electron affinity,and have the good ability of eradiating electrons in electric field.

其中非晶碳膜具有好的化学稳定性和热稳定性、高的熔点和热导率、小的介电常数、大的载流子迁移率和高的击穿电压，是一种很有前途的场发射冷阴极材料。

This thesis studies the high ash fusibility Huainan coal blended with four low fusibility coals.

通过配煤的方法，对高灰熔融性淮南煤与4种低灰熔融性煤进行配加，可以显著的降低淮南煤的高灰熔点。

Because the carbonyl in its structure is with strongly absorb-electron effect, so it is a kind of non-proton polarity solvent with high boiling point, high flash point and low melting point, use conveniently for many processing operation such as filtration, distillation, solvent extraction, and so on; it is with very low toxicity, so the harm to human body is inappreciable, and reduce the environment pollution; due to its very strong dissolvability, it can dissolve organic matter, inorganic matter, resin, polymer, etc., and activate all kinds of reagent, mix to dissolve the other high boiling point solvents; it is with very good stability, it is stable under the hot strong alkali and acidity condition, it is with water-resistance and light, oxygen stability.

246℃ m.p：—20℃闪点121℃ flash point： 121℃分子式：C6H12N2O molecular formula： C6H12N2O 分子量128.18 molecular weight： 128.18 二、DMPU的化学性质 Chemical character of DMPU 其结构中由于羰基具有强烈的吸电子效应，因而它是一种非质子的极性溶剂，具有高沸点、高闪点、低熔点，在过滤、蒸馏、溶剂萃取等工艺操作中使用方便；毒性极低，对人体危害微不足道，也减少了对环境的污染；由于它具有极强的溶解性，能溶解有机物、无机物、树脂、聚合物等，并对各种试剂具有活化性质，还能与其它高沸点溶剂混溶；具有极好的稳定性，在热的强碱和酸性条件下都很稳定，还具有耐水性及对光、氧的稳定性。

The bismaleimide has the defects such as high melting point, bad resolvability, high curing temperature, great brittleness because of the structure, and these restrict its application and development.

双马来酰亚胺由于结构的特点，使得双马来酰亚胺树脂具有熔点高、溶解性差、成型温度高、固化物脆性大等缺点，这些均限制了双马来酰亚胺树脂的应用与发展。

By means of the analyses of SEM and metallograph and physical tests,the microstructure and properties of the composites made from copper-coated-TiB2 have been studied.

1引言硼化物陶瓷具有极高的熔点、高化学稳定性、高硬度和优异的耐磨性，基于这些优点，成为复合材料强化物的首选材料之一。

It is concluded that the relative high Al 2O 3 content in titaniferous iron ore leads to increasing of the viscosity and the melting-point of high titanium slag, irregularity in furnace operation and technical-and-economic indexes depression.

认为当钛铁矿中Al2 O3 含量偏高时会导致高钛渣粘度增加，熔点升高、炉况恶化以及指标变坏，同时还会影响二氧化钛的富集及氯化工序的正常生产。

MgO-C brick has a good erosion resistance but Al〓O〓-C brick is better. Corrosion mechanism for refractory without carbon is that FeO and oxides of molten slag take place chemical reaction with constituents of refractory and forming low fusing point compounds to be dissolved in molten slag. For those refractory containing graphite carbon is to be decarburized in advance and to form decarburizing layer and metamorphosis layer. The subsequent corrosion is decarburizing and taking chemical reaction to form low fusing point compounds and dissolved in molten slag at the same time.

铁浴中硅和钛的扩散是影响铁浴及熔渣与耐火材料作用的重要因素，耐火材料中添加的TiO〓和SiC受熔渣氧化和侵蚀，将被部分还原形成Si，Ti向铁浴中扩散，Si、Ti在铁浴中的扩散研究结果是： D〓=1.84×10〓exp（－5988.7/T） cm〓/S E〓=49766 J/mol D〓=7.76×10〓exp（－53225.5/T） cm〓/S E〓=442304 J/mol 铁浴式熔融还原熔体对粘土砖，高铝砖，镁砖的侵蚀速度很高，镁碳砖抗侵蚀能力比前几种耐火材料强，但不如铝碳砖；对不含碳耐火材料在熔体中的侵蚀是熔渣中FeO及其它氧化物与耐火材料组分的化学反应形成低熔点物熔蚀进入渣相，产生损毁。

ZA alloy is based on Zn and composed of Al, Cu, Mg added as alloying elements. It is a kindof environmental friendly material that possesses characteristics of high strength, better plasticity,excellent wear resisting property, low friction coefficient and high specific strength, low meltingpoint and no magnetic. ZA alloy has been widely applicated in the fabrication of mechanical partsand models, such as bearing, axle sleeve, pressing plate and turbine. However, the joiningproblem of ZA alloy that hasnt been solved has limited its application in some fields.

ZA合金是以Zn为基，添加了Al、Cu、Mg等合金元素，具有强度高、塑性好、耐磨性优良、摩擦系数低及较高的比强度、低的熔点、无磁性等特点的环保材料，广泛应用于制造轴承、轴瓦、压板、涡轮等机械零件及模具等，但由于连接问题没有解决限制了ZA合金在一些领域的应用，也因此成为ZA合金急亟待解决的问题之一。

In general, the characteristic of alumina is hard, hard-wearing, high melting point and very stable. The polymer is high plastic, so we can mix with alumina and polymer to develop the new characteristic material.

一般来说提到氧化铝的特性被联想到就是特性稳定、坚硬耐磨耗、熔点高、耐高温等；而高分子则是柔软度高、可塑性高等，因此构想把氧化铝和高分子结合在一起，开发新功能性材料。

The application of this glass used as low-melting point glass and its transiting temperature and thermal expansion coefficient are analyzed and discussed.

本文报道了Na_2O-Al_2O_3-B_2O_3系统玻璃可作为一种低熔点玻璃的应用，并依据实验结果给出了Na_2O-Al_2O_3-B_2O_3系统的相图、Tg点等高图、膨胀系数等高图。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。