高熱導率 的英文怎麼說
中文拼音 [gāorèdǎolǜ]
高熱導率
英文
high heat conductivity-
Quartzes and rock salt have the highest conductivities.
石英巖和巖鹽的熱導率最高。At very great depth the heat capacity as well as the thermal conductivity must be assumed to be higher than near the earth's surface.
如果深度很大,就必須認為熱容以及熱導率都高於接近地表處的熱容和熱導率。The microstructure in this system shows randomly oriented fine plate - shaped grains with multi - layered structure. the fine grains randomly oriented ( strong grain boundary scattering ) and pores in these sintered samples could decrease the electrical conductivity. however, on the other hand, the fine grains randomly oriented and pores could lead to a dramatic decrease in the thermal conductivity
燒結樣品的顯微結構由具有多層片狀結構的顆粒組成,材料的顯微結構直接影響到材料的電導率和熱導率,細小顆粒和氣孔的存在會引起電導率的降低,同時也能降低材料的熱導率,優化材料顯微結構是提高材料的熱電性能的關鍵步驟。Characterized by wide band gap, high breakage electric field, high thermal conductivity, high saturated electron mobility, cubic silicon carbide ( 3c - sic ), considered as one of the most promising wide band gap semiconductors, is widely utilized in high temperature, high frequency and large power semiconductor devices
3c - sic被譽為最有潛力的寬禁帶半導體材料,具有帶隙寬、臨界擊穿電場高、熱導率高、飽和電子漂移速度大等優點,是高溫、高頻、高功率半導體器件的首選材料。The filled skutterudite compounds attract aboard attention owing to their high mobilities and relatively large seebeck coefficients in the middle temperature range of 600 - 800k. but their thermal conductivities are very high, so the problem how to decrease their lattice thermal conductivities and improve their zt values becomes a research hotspot
填充式skutterudite化合物由於在中溫領域( 600 800k )具有很高的載流子遷移率和較大的seebeck系數而引起人們的廣泛關注;但其熱導率k較高,因而如何降低晶格熱導率kl ,提高其熱電性能指數zt值已成為研究的熱點。Silicon carbide is becoming the most promising semiconductor material for high temperature, high frequency and high power devices because of its superior properties such as wide band gap, high breakdown field, high electronics saturation drift velocity, and high thermal conductivity
Sic材料由於具有寬禁帶、高臨界擊穿電場、高飽和電子漂移速度、較大的熱導率等優良特性,因此成為製作高溫、高頻、大功率器件的理想半導體材料。Featured by wide band gap, high breakage electric field, high electron mobility, low dielectric constant, strong irradiation proof and excellent chemical stability, silicon carbide ( sic ), viewed as one of the most promising wide band gap semiconductors, is widely utilized in optoelectronic devices, high frequency and large power, high temperature electronic devices
被譽為最有潛力的寬禁帶半導體材料一sic ,因其具有禁帶寬度大、擊穿電場高、熱導率大、電子飽和漂移速度高、介電常數小、抗輻射能力強、良好的化學穩定性等優異的特性,被廣泛地應用於光電器件、高頻大功率、高溫電子器件。The greatest dependence upon temperature is shown by rocks with high conductivities at room temperature e. g. salt.
在室溫下,高熱導率巖類(如鹽類)的熱導率對溫度的反應最大。Zirconium alloys are employed extensively in light water cooled reactors ( lwr ) as the cladding materials of fuel elements and other structural materials because of the low capture cross - section for thermal neutrons, good resistance to water - side corrosion at elevated temperature, adequate mechanical properties and high thermal conductivity
由於鋯的熱中子吸收截面小,並具有優異的耐高溫水腐蝕性能、良好的綜合力學性能和理想的熱導率,因此,鋯合金被用作核電站水冷動力堆核燃料元件的包殼材料和堆芯的其它結構材料。In both of the two doped models, the calculation results show that their conductivity is higher than that of the non - doped model, while the seebeck coefficient and thermal conductivity are lower than the non - doped on e
兩種摻雜模型的電導率都高於未摻雜的ca _ 3co _ 2o _ 6 ,而seebeck系數和熱導率都降低。And then we used the armor plate to do the experiment, we found that the thin silicon steel board which poses high magnetism conductance rate is far better than the normal steel board
選擇鋼板材料作渦流加熱實驗時,發現具有高磁導率的薄硅鋼板的渦流熱效應明顯比普通鋼板好。As a type of potentially good thermoelectric materials, cosb3 compounds with the skutterudite crystal structure mx3 have attracted attention widely, because of their high carrier mobility, large electrical conductivities, and large seebeck coefficients. however, the thermal conductivity of skutterudite is too large, so, zt is low. therefore reducing the thermal conductivity of cosb3 has becomed a main research way at present
Cosb _ 3方鈷礦化合物作為一種具有潛在高熱電性能指數的新型中溫熱電材料具有大的載流子移動度、高的電導率和較大的seebeck系數,但由於熱導率較大,因此要提高cosb _ 3方鈷礦化合物的熱電性能,降低其熱導率是當前研究的熱點之一。It is shown that the high hardness and low thermal conductivity promote the formation of transformed asbs, and the deformed asbs will form if low hardness and high thermal conductivity are involved ; for steel with both high hardness and thermal conductivity, the transformed asbs will transform into deformed ones, due to that the fast heat conduction from high temperature asbs results in rapid temperature rise around and thus decreasing the hardness
研究結果表明:鋼的高硬度和低熱導率有利於形成相變帶;反之,則傾向于形成變帶;對于具有高硬度和高熱導率的鋼,由於高溫相變帶區域的熱量迅速傳遞到周圍的基體組織而使其溫度升高、硬度降底,形成的相變帶會向形變帶轉化。High power femtosecond laser is one of the hotspot for the manufacture of ultral - short laser
摘要新型陶瓷材料近年來開始作為激光增益材料,具有低成本、大尺寸、制備時間短、熱導率高等優點。Analysis of heat transfer and effective thermal conductivity of high temperature fibrous insulation for thermal protection system
熱防護系統高溫纖維隔熱氈傳熱及有效熱導率分析This product is a new kind of heat insulating material made by alumina bubble with relatively high strength, low density and thermal conductivity
本產品是由氧化鋁空心球製作的新型隔熱材料,強度較高,密度和熱導率低。本產品在高溫下使用能大量節省能源。Much attention has been paid on pure or doped zirconia thin films because of their high melting point, low heat conductivity, high ionic conductivity and chemical durability. in the case of metal - oxide - semiconductor ( mos ) devices and high - temperature superconductor ( hts ) wires, zirconia epitaxial thin films are promising buffer layers and have been intensely studied in the past two decades
純的或摻雜的氧化鋯薄膜因其高熔點、低熱導率、高離子導電能力和高溫化學穩定性而受到相當的重視,而且氧化鋯外延薄膜在金屬氧化物半導體( mos ) 、高溫超導帶材等領域的應用受到越來越多的關注。Diamond is a remarkable material due to its special crystal structure, which shows high hardness, low friction coefficient, high thermal conductivity, high optical transparency, low permittivity and high band gap etc. cvd diamond films are widely used in mechanical coating, heat sinks, optical window, semiconductor devices and other application fields because of its low price and high performance
金剛石的特殊晶體結構使其成為一種性能優異的功能材料,它具有高硬度、低摩擦系數、高熱導率、高透光率、低介電系數和高禁帶寬度等性質。化學氣相沉積制備金剛石膜成本低、質量高,廣泛應用於工具塗層、熱沉、光學窗口、半導體器件等方面。In addition, the nanometer - size particles of bn was doped into the mg - si - based thermoelectric materials as the second - phase for the first time. the result showed that the introduction of nano bn could decrease the thermal conductivity of the mg2si - based thermoelectric material and as a result its power factor were improved
論文還首次在mg一si基熱電材料中引入bn納米粒子第二相,結果表明:在mg一si基熱電材料體系中引入bn納米粒子第二相能有效降低材料的熱導率,提高熱電材料的優值系數。Due to its intrinsic merits, such as wide band gap, high electron saturated drift velocity, high melting point, good coefficient of thermal conductivity, anti - radiation and good chemical stability, gallium nitride as a direct band gap semiconductor has become the promising material for the application of short - wave light - emitting devices and high temperature, high frequency and high power electronic devices
Gan是直接帶隙半導體材料,以其禁帶寬度大、電子飽和漂移速度大、熔點高、熱導率高、抗輻射能力強和化學穩定性好等優點成為製造短波長光發射器件及高溫、高頻、大功率電子器件的理想材料。分享友人