熱膨脹因數 的英文怎麼說
中文拼音 [rèpéngzhàngyīnshǔ]
熱膨脹因數
英文
factor of expansion- 膨 : 動詞(物體的長度或體積增加) expand; swell
- 脹 : 動詞1. (膨脹) expand; dilate; inflate 2. (脹大) swell; distend; bloat
- 因 : Ⅰ動詞[書面語] (沿襲) follow; carry on Ⅱ介詞1 [書面語] (憑借; 根據) on the basis of; in accord...
- 數 : 數副詞(屢次) frequently; repeatedly
- 膨脹 : expand; swell; dilate; inflate; puff; bulge; inflation; expansion; dilatation; buckling; swelling...
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Cordierite is a kind of superior heat - resistant material melting point can achieve 1400, and its thermal expansion coefficient is close to zero
Cordierite是一種優越的耐熱材料(熔點達1400 )其熱膨脹系數接近於零,因此,可忍受急劇之溫差。The t - r characteristics may originate from the total function of volume expansion and temperature susceptibility of asphalt, the deference of volume expansion coefficient with heat between asphalt and graphite, and internal stress
而溫敏產生的原因則為瀝青的體積膨脹、石墨和瀝青的熱膨脹系數差異、內部應力和瀝青溫度敏感性共同作用的結果。The heat expansion coefficient of plastic is much higher than metal caused by abrasion heat and the change of environment condition. plastic gear needs enough gap
因磨擦熱和環境條件的變化,塑料比金屬熱膨脹系數高許多,塑料輪需要足夠的This show us a very useful signal in studying the systematic property in the early stage of the evolutive colliding system, that ' s, a non - zero flow component of those particles observed by experiment could be interpreted as a signal for partonic flow
因此在碰撞早期產生的重子數輸運是高能重離子碰撞中的一個重要的物理量,它影響著初態部分子的平衡,粒子的產生,系統的熱力學或化學平衡以及集體膨脹等過程。The relations between the parameters of gas charging and exhausting, heat quantity through the shell of tube ( q ), the length of the tube ( l ), the ratio of gas charging time to gas exhausting time ( ), the frequency of the jet flow ( f ), the ratio of the expansion ( ), the nature of thermal separator and the unsteady flow in the tube were established
建立了進、排氣參數、管壁散熱量( q ) 、管長( l ) 、充、排氣時間比( ) 、射流頻率( f ) 、膨脹比( )等參數與熱分離機性能及管內非定常流動的關系,並分析了有關因素對熱分離機性能的影響。And then, some improvements have been made on the old single tube pressure wave refrigerator experimental system. the experimental research, such as the ratio of gas charge time to gas exhaust time ( ), the frequency of the jet flow ( f ), the ratio of the expansion ( ), the length of the tube ( l ) and the heat transfer condition, has been carried out on the improved experimental system. the results were drawn as the following : the refrigerating efficiency will be heightened by augmenting when is in 0. 0405 to 0. 1842 ; the highest cooling efficiency will be
實驗考察了有關因素對製冷效率和最佳射流頻率( fopt )的影響並進行了理論分析,結果表明,在= 0 . 0405 ~ 0 . 1842范圍內,製冷效率( )隨的增大而提高;隨射流頻率( f )的變化出現多個峰值,在本文實驗參數范圍內下,第二個峰值點的效率比第一個峰值點高;隨著膨脹比( )的增大,和fopt都略有增大,且低下的增幅比高下的大;強化管外換熱,可使fopt降低、明顯提高。The ha coating is easily broken off from the substrate because of the interface corrosion, caused by the body fluid, and the cycle load. the preparation of the bg / ha bioactive graded coating on the surface of ti6a14v is an effective way to alleviate the heat stress
在鈦合金表面制備生物玻璃( bg ) ha梯度塗層,來緩和因熱膨脹系數不匹配而造成的塗層內部過高的熱應力是解決以上問題的有效途徑之一。So this question must be solved at first. a variety of factors which influence cte mismatch induced thermal stresses such as fiber array, temperature dependent material properties, composites fabrication temperature and pressure has been discussed. on the other hand, the temperature gradient induced thermal stresses is also analysed and factors such as heat treatment conditions, composites fabrication temperature and pressure to influence the stresses are investigated
本文首先利用ansys模擬基體材料分別處于理想彈性應力狀態和理想彈塑性應力狀態時,各種因素諸如纖維排布模式、模量等性能參數是否隨溫度變化以及復合材料制備溫度和壓力對熱膨脹系數不匹配誘導熱應力的影響;另外,我們也對溫度梯度誘導熱應力進行了一定的研究,分析了各種熱處理工藝以及材料制備溫度、壓力對它的影響。The heteroepitaxial growth of 3c - sic on si substrate not only unfurls the maturity of si process, but also incarnates the excellence of 3c - sic, so that it become for long researchful direction. due to the large lattice parameter mismatch ( ~ 20 % ) and the large thermal expansion coefficient mismatch ( ~ 8 % ), however, the 3c - sic / si study is very difficult
然而,由於3c - sic與si之間存在較大的晶格失配度(約20 % )和熱膨脹系數差異(約8 % ) ,因此, 3c - sic / si異質外延薄膜的制備非常困難,仍存在許多技術問題需要克服。Obviously, cte mismatch induced thermal stresses is one of the biggest characteristic in mmc because cte mismatch is usually very serious in most of mmc
顯然,熱膨脹系數不匹配誘導的熱應力是金屬基復合材料的一大特徵,因為對于大多數金屬基復合材料來說,熱膨脹系數不匹配是很嚴重的。Temperature fluctuations caused by either power transients or environmental changes, along with the resulting thermal expansion mismatch between the various package materials, results in time and temperature dependent creep deformation of solder
然而封裝的高密度使單位體積內容易產生更大的熱量,因此必須關注熱引起的封裝失效問題。特別是由於封裝材料間熱膨脹系數不匹配而導致的焊點失效。In the process of preparing glass / mullite composite material, research on shrink rate, bending strength, dielectric constant, dielectric loss tangent, etc have been carried out. in the experiment, the thermal expand coefficient of samples is tested, and through sem, insides structure of sintered sample is studied, so the relationship of
在制備玻璃/莫來石復合材料的過程中,我們研究了燒成后徑向收縮率、試樣的抗彎強度、介電常數、介質損耗及其影響因素,並測試了試樣的熱膨脹系數,通過sem觀測燒成試樣的內部結構情況,找出性能和結構之間的關系。Aluminium titanate ( al2tio5, at ) has many excellent properties such as low thermal expansion coefficient, thermal conduction coefficient, high melting point, endured corrosion and thermal resistance, so it is one of the best materials with low thermal expansion coefficient resisting high temperature
鈦酸鋁( al _ 2tio _ 5簡稱at )因其具有接近於零的熱膨脹系數、低的導熱系數、高熔點、耐腐蝕和抗熱沖擊性能好等特點,是目前低熱膨脹材料中耐高溫性能最好的材料之一。But there is a big tensile stress, caused by the difference of the thermal expansion coefficient, at the interface between the ha coating and the substrate
但因熱膨脹系數差異, ha塗層與基體間存在很大的張應力。The strong honeycomb ceramics was extruded using the above batch composition. the relation between property of samples strength, micro - hardness, thermal expansion coefficient, thermal - shock resistance and microstructure of composite ceramics were discussed by sem, xrd test. the function in composite ceramic and the effection on microstructure of the different series additive were studied
採用現代測試技術如xrd 、 sem 、 epma對樣品進行了綜合測試與分析,探討了不同系列樣品中添加劑在復合陶瓷中的作用及其對微觀結構的影響,討論了樣品的抗折強度、顯微硬度、熱膨脹系數、抗熱震性與氧化鋁氧化鋯莫來石復合陶瓷的組成和微觀結構的相互關系,分析了其影響因素。Metal matrix composite had begun to develop early in 1960s, and became one new branch in the field of composite. among them, the aluminum based matrix developed especial quickly, because it has many merits compared with other metal, such as light weight, specific strength and shear strength, low coefficient of thermal expansion, high young ' s modulus, better thermal stability and temperature conductivity
金屬基復合材料在六十年代開始有了較快的發展,成為了復合材料領域的新支,其中,鋁基復合材料的發展尤為迅速,因為它具有重量輕、比強度高、剪切強度高、熱膨脹系數低、高的彈性模量,良好的熱穩定性、導熱性能等一系列優點。分享友人