导热的

The crystallization form of porous glass-ceramics belong to volume crystallization; the parawollastonite which was the main phase was monocline chain structure ZM type wollastonite, with long needle crystal or short rodlike crytal.

为了研究多孔微晶玻璃的保温性能，根据伟晶岩多孔微晶玻璃的内部组成以及孔隙率情况，作者提出了三种热传导的理想等效物理模型，推导出了数学公式，验证了多孔微晶玻璃的导热系数。

Effective heat capacity method was used to simulate heat transfer of freezing phase change growth in the metallic foams at the third boundary condition. The average temperature distributions vs. time in the metallic foams were obtained. The results showed effects of different porosity and thermal conductivity on the temperature distributions.

采用显热容法模拟了第三类边界条件下泡沫金属中水的冻结相变传热过程，得到了泡沫金属中骨架和流体的温度分布及其平均温度的变化，分析了不同骨架导热系数及不同孔隙率对介质温度分布的影响。

Micro-bore calcium silicate without rock cotton is a white, hard new thermal insulation material which has the features of light unit weight, high hardness, low heat conduction coefficient, heat resisting, corrosion-proofed, cuttable and sawable, and widely used in the pipeline of electric, metallurgy, petrochemistry, architecture and shipbuilding industry, and heat resisting, fireproofed and soundproofed equipment of the house wall.

提示：为保障您的交易安全，推荐采用&支付宝&支付；如果您因采用支付宝而受到损失，本站将全额赔偿！无石棉微孔硅酸钙是一种白色、硬质的新型保温材料，具有容重轻、强度高、导热系数小、耐高温、耐腐蚀、能切、能锯等特点被广泛应用于电力、冶金、石化、建筑、船舶等领域的设备管道、墙体屋面的保温隔热和防火隔音。

Micro-bore calcium silicate without rock cotton is a white, hard new thermal insulation material which has the features of light unit weight, high hardness, low heat conduction coefficient, heat resisting, corrosion-proofed, cuttable and sawable, and widely used in the pipeline of electric, metallurgy, petrochemistry, architecture and shipbuilding industry, and heat resisting, fireproofed and soundproofed equipment of the house wall.

速购网提示：为了保障您的交易安全，推荐采用速购宝支付；如果您使用速购宝受到损失，速购网全额赔偿！无石棉微孔硅酸钙是一种白色、硬质的新型保温材料，具有容重轻、强度高、导热系数小、耐高温、耐腐蚀、能切、能锯等特点被广泛应用于电力、冶金、石化、建筑、船舶等领域的设备管道、墙体屋面的保温隔热和防火隔音。

Micro-bore calcium silicate without rock cotton is a white, hard new thermal insulation material which has the features of light unit weight, high hardness, low heat conduction coefficient, heat resisting, corrosion-proofed, cuttable and sawable, and widely used in the pipeline of electric, metallurgy, petrochemistry, architecture and shipbuilding industry, and heat resisting, fireproofed and soundproofed equipment of the house wall.

速购网提示：为了保障您的交易安全，推荐采用速购宝支付；如果您使用速购宝受到损失，速购网全额赔偿！无石棉微孔矽酸钙是一种白色、硬质的新型保温材料，具有容重轻、强度高、导热系数小、耐高温、耐腐蚀、能切、能锯等特点被广泛应用于电力、冶金、石化、建筑、船舶等领域的设备管道、墙体屋面的保温隔热和防火隔音。

The influence of SiO2, Fe2O3 on the thermal conductivity, melting point of risers covering flux were studied in the paper and the effect of dilative graphite on expansibility and heat-insulating property were also investigated. The high temperature microstructures and the thermal insulation mechanism were researched by scanning electron microscope.

在综合硅酸盐相图理论知识及大量国内外研究资料的基础上，着重研究SiO2、Fe2O3对保温冒口覆盖剂的导热系数、熔化温度的影响，以及膨胀石墨对冒口覆盖剂膨胀性和保温性能的影响，并利用扫描电镜分析了冒口覆盖剂高温烧结微观组织形貌及其保温机理。

The Ultra-Fine-Grained copperwith fine structure performs excellent properties,such as ductibility,electrical conductivity and heat conductivity and so on.It has become an important raw material in the following industrial departments as electric apparatus instrument,chemical industry, shipbuilding,aviation and machinery,etc.,and has wide application prospects.

超细晶铜材因具有微小的细晶结构而表现出了优异的延展性、导电性以及导热性等性能，已经发展成为了电器仪表、化工、造船、航空、机械等工业部门中的重要原料，具有广阔的应用前景。

The effects of microburner dimensions, heat conductivity and thickness of wall, external heat losses and wall roughness on com-bustion characteristics were studied.

模拟结果显示，燃烧器内径的变化、壁面导热系数、对流换热系数和壁面厚度的变化影响了热量在壁面内的传递和流体内径向温度的传递，使得燃料点燃和燃烧稳定性受到影响，甚至导致燃烧停止。

Five synthesis methods of AlN powder were discussed, namely direct nitrogenation of Al powder, carbothermal reduction of Al2O3, chemical vapor deposition, sol-gel method, self-propagating high-temperature synthesis and plasma chemical synthesis. The choice of AlN sintering additives and five sintering technologies were analysed, namely hot pressing sintering, pressureless sintering, spark plasma sintering, microwave sintering and self-propagating sintering. The preparation processes of AlN substrate and its influencing factors were expounded.

介绍AlN陶瓷的典型性能和导热机理；讨论AlN粉末的5种合成方法：铝粉直接氮化法、Al2O3碳热还原法、化学气相沉积法、溶胶凝胶法、自蔓延高温合成法和等离子化学合成法；分析AlN烧结助剂的选择和5种烧结工艺：热压烧结、无压烧结、放电等离子烧结、微波烧结及自蔓延烧结；阐述AlN基板的制备工艺及其影响因素。

And research shows that high thermal conductivity composite can decrease the temperature difference of underfill between chip and substrate, so that it can improve the temperature distribution of the flip chip, decrease the thermal stress of underfill and increase packaging reliability.

表明高导热系数的底充胶可明显降低在芯片和基板之间的温度差，降低底充胶的热应力，进而提高电子封装的可靠性。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。