temperature expansion coefficient 中文意思是什麼

temperature expansion coefficient 解釋
溫度膨脹系數
  • temperature : n. 1. 溫度,氣溫。2. 體溫。3. 〈口語〉發燒,高燒。
  • expansion : n 1 張開,伸展。2 擴大;擴建;展開;發展。3 廣袤,遼闊。4 擴張物,擴大部分。5 (講題等的)詳述,...
  • coefficient : adj. 共同作用的。n. 1. 共同作用;協同因素。2. 【數,物】系數,率;程度。
  1. The anharmonic effect of atomic vibration taken into account and from the potential energy which reacts each other among atoms, boltzmann statistical principle used, the relation formula of temperature and the distance change between atoms and coefficient of linear expansion is derived

    摘要考慮原子振動的非簡諧效應,從原子間相互作用勢能入手,運用玻爾茲曼統計原理,推出了原子間距的變化與溫度的關系式,並導出了固體的線脹系數。
  2. A very low linear expansion coefficient sample carrier made from invar, ensures that temperature change has no effect on the sample position

    由不脹鋼製成非常低膨脹系數的樣品載臺保證溫度變化對樣品的位置沒有影響。
  3. The imported transparent glaze fired at lower temperature was analysed semi - quantitatively by adopting emission spectroscope. the stripping of lead and cadmium from this transparent glaze fired at lower temperature in ceramic product was determined by atomic absorption spectroscope. the effect of chemical composition on the stripping of lead and cadmium was analysed. upon the author s opinion, the overproof lead stripping from the imported transparent glaze fired at lower temperature can only be settled by adopting lead - free glaze instead of adopting low - lead prescription. the author succeeded in developing an excellent lead - free transparent glaze fired at the lower temperature of 1000 1050. the success is based on an inquiry into the feasibility of using such new agents of fusion as li2o and sro in replacement of pbo ; and on a study of the effects of the contents of sio2 , al2o3 , b2o3and other metallic oxides on such performances of glaze as coefficient of linear expansion, fusion temperature and transparency. it is also based on an analysis of coefficient of linear expansion of blank and glaze on an analysis of coefficient of linear expansion of blank and glaze on their correlation ; and on a study of technology for preparing glaze

    採用發射光譜儀對進口低溫透明釉進行半定量分析,並用原子吸收光譜儀測定其陶瓷製品的鉛、鎘的溶出量,分析化學成分對鉛、鎘溶出量的影響.結果表明,進口低溫透明釉採用低鉛配方不能解決鉛溶出量的超標問題,只有採用無鉛釉才能解決.探討用氧化鋰和氧化鍶等新型熔劑完全代替氧化鉛的工藝,研究釉料中氧化硅、氧化鋁、氧化硼和各種金屬氧化物的含量,對釉的線膨脹系數、熔融溫度和透明度等性能的影響.分析坯料、釉料的線膨脹系數及其相互關系和釉料制備的工藝,研製出優質的1000 1050低溫無鉛透明釉
  4. The studies indicate that different content of pyrophyllite and dolomite can cause the following three cases : ( 1 ) making the refractory point decrease linearly and, to some extent, influencing the microstructure and properties of sintered body ; ( 2 ) acceleratingmullite formation during sintering, reducing thermal expansion coefficient of bond, reinforcing the matching nature and improving the flexural strength and shock strength ; ( 3 ) preventing sic grinding tool from generating black core, expanding suitable sintering temperature range of sic grinding tool

    同時,也不同程度地影響了磨具燒結體的微觀結構和性能; ( 2 )可促進在燒結過程中莫來石的形成,降低結合劑的熱膨脹系數,加強了結合劑與磨料的匹配性,提高了磨具的抗折強度和抗沖擊強度; ( 3 )在一定溫度范圍內還可防止碳化硅磨具出現黑心現象,拓寬了碳化硅磨具的燒結溫度適應范圍。
  5. 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。
  6. As a super refractory, nature flaky graphite has many advantages such as high thermal conductivity, high thermal shock resistance, excellent high - temperature strength, excellent machinability, high sublimation temperature and low thermal expansion coefficient. unfortunately, the poor water wettability, low density and flaky structure of graphite surface limit its application with large quantity

    天然鱗片石墨以其熱膨脹小,導熱性、抗熱震性和化學穩定性好等諸多優點而成為適應鋼鐵冶煉苛刻環境耐火材料的原料,但石墨在水中的潤濕性、分散性差以及在空氣中易氧化等缺點限制了它的進一步應用。
  7. Colourless optical glass test methods - linear thermal expansion coefficient and trasformation temperature

    線膨脹系數和轉變溫度測試方法
  8. Colourless optical glass test methods - linear thermal expansion coefficient and transformation temperature

    無色光學玻璃測試方法線膨脹系數和轉變溫度測試方法
  9. In this paper, the target radiate characteristics and waveband selection of the infrared system reviewed briefly ; the suppression of the stray radiation in the infrared sub - system is discussed ; the material selection, the support structure and optimization of the primary mirror in the infrared sub - system of the theodolite, every factor which will affect the surface figure of the mirror is discussed in detail and get the result that in the circumstance of shooting range, the primary factor which affects the surface figure of the mirror in the infrared sub - system is temperature changing, this ca n be resolved by using material of low expansion coefficient and using same material in the mirror and the mirror seat

    本文將對紅外系統的目標輻射特徵分析和波段選擇進行簡要回顧,討論紅外系統中雜散輻射的抑制,並詳盡分析經緯儀紅外光學系統設計中所涉及到的反射鏡的材料、支撐、結構和優化設計等問題,認真討論和分析影響主鏡的面形精度的各種可能因素。並指出:在靶場環境下影響經緯儀紅外分系統主鏡面形精度的主要原因是溫度的變化,這種情況可通過選擇低線膨脹系數的材料並且使鏡座和反射鏡採用相同的材料予以解決。
  10. Several materials with large coefficient of expansion were selected to make packaging components, and it was found that the packaging materials have good temperature sensitivity and compatibility with optical fibers. experimental accuracy and repetition of fbg temperature sensitivity and compensation were discussed. have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber ; have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of fbg wave - length, have obtained the first step conclusion ; have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes

    本文所做的主要工作包括以下幾個內容:一、選取了常見的熱膨脹系數大的材料製作封裝元件,經過多次一80到80反復測試,封裝元件沒有出現老化開裂、封裝裂紋、空洞、離層等缺陷,封裝材料具有良好的溫敏穩定性及復用性,與光纖相容性較好;二、對光纖光柵進行簡單、實用的封裝處理,就封裝效果的優劣性、波長測量的準確度、重復性和封裝時產生的波長損失等方面進行了一系列的實驗,得出了初步的結論;三、對溫敏和溫度補償式封裝的實驗數據進行了詳細的分析和對比,從數字上對溫變過程中光纖光柵中心波長的改變及溫變曲線進行了定量的分析,在大量實驗數據分析結果的基礎上,總結出哪種材料封裝效果更好,以及如何有效的減小實驗誤差。
  11. The results demonstrate that the theory predicted values of compression, bulk modulus, linear expansion, and thermal expansive coefficient of compressed solids are very agreement with the corresponding experimental data. in summary, the error with respect to theory prediction and its causes are pro bably analyzed in detail. the discussion suggests that the function of the phenomenological short - distance repulsive force constant a ( v ) and approximation for anderson - griineisen parameter 5t ( v ) proposed in this paper are valid and applicable in high pressures ( up to loogpa ) and high temperatures ( from debye temperature 0d to melting temperature tm ) for many types of solids

    在本文最後一節,為了驗證固體在等壓過程中anderson grhneisen參量乓與體積膨脹的唯象假設:乓久w兀的有效性,及由此假設而推導出來的等壓態方程的廣泛應用性,本論文主要針對十六種堿金屬鹵化物、三種堿性氧化物、三種硅酸鹽礦物質的線膨脹八n 、體積熱膨脹v vo ( n 、熱膨脹系數a ( n 、體積彈性模量肘d等隨溫度的變化作了理論上的預測,且與相應的實驗數據作了比較與分析
  12. The calculated temperature coefficient of resistivity was 2. 80x10 - 3 k - 1 at the temperature range of 25 - 800. the thermal expansion coefficient ( tec ) was 8. 71 x l0 - 6 k - 1

    電阻率隨溫度升高而變大,具有典型的金屬導體特徵,計算的電阻溫度系數為2 . 80xlo一3k一, 。
  13. Laser speckle interferometry was used as the experimental method to test the coefficient of thermal expansion ( cte ) of the metal composite leads used in the packaging structures and the thermal deformations of the entire packaging structures due to the change of temperature from room - temperature to 150oc

    通過實驗和數值模擬的方法對其熱變形和熱應力進行了研究。採用激光散斑干涉法測量了從室溫到150oc的封裝用金屬復合引線的熱膨脹系數和整個封裝結構的熱變形。
  14. This clear quartz rod has high purity, elevated temperature characteristics and low coefficient of thermal expansion. it serves as the material of the bridging rod for single and halogen lamps, fiber optic lighting, quartz making, wafer carriers and push rods in semiconductor industry

    這種透明石英棒具有純度高,耐高溫性強以及熱膨脹系數低的特點,用於單端鹵素燈的壓橋棒,光纖照明、石英纖維的製造以及半導體矽片的加工等。
  15. In this article, through lab and engineering site trials that the physical data of new type pipe materials is corrected, the results are as follow : ( l ) the expansion coefficient of new plastic pipe materials is more large than that of iron pipe. ( 2 ) new plastic pipe materials have different heat - resisting character and according to the water temperature to choose pipe materials ; ( 3 ) the loss of head of water for new type pipe materials is more smaller than iron pipe and also correct the loss of head of water that calculated by theory ; ( 4 ) probing into the press - resistance character of new plastic pipe materials

    本文通過試驗室試驗及工程現場試驗,對新型給排水管材的幾個重要的物理性能參數進行實驗測定,糾正了以往的錯誤認識。研究結果表明: ( 1 )新型塑料管材線脹系數遠遠大於鋼管和鑄鐵管,設計和施工中要嚴格考慮管道的伸縮; ( 2 )新型塑料管材耐高溫性能各不相同,需根據管內水溫選定管材; ( 3 )新型管材水頭損失遠小於鋼管,並對原水頭損失計算公式進行了修正; ( 4 )對于塑料管材的耐壓性能進行了探討。
  16. Adding sic can decreases sintering temperature of al2o3 efficaciously, but also can make the al2o3 crystal growth as flake, strengthen the coalescent of the al2o3 crystals, and the residual sic during sintering can strengthen the al2o3 ceramics. because the reaction between sic and al2o3 begins from the surface of samples, there is a compact protecting field on the surface of the samples to restrain o2 enter into the samples, and leave more pore in them to decrease the thermal expansion coefficient and increase their the al2o3 ceramics " thermal shock resistanc e times

    引入sic的樣品在燒結過程中,首先在樣品的表面產生sic與o _ 2及al _ 2o _ 3的反應,形成一層緻密的保護層,阻礙o _ 2進入材料內部,在材料的內部留下較大的氣孔率,可以降低其熱膨脹系數,並使材料在受熱過程中有一定的空間進行結構調整,能夠顯著的提高al _ 2o _ 3陶瓷材料的抗熱沖擊次數。
  17. Aluminium titanate ( 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

    鈦酸鋁由於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,是目前低膨脹材料中耐高溫性能最好的一種之一。
  18. 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。
  19. 4 coefficient of linear expansion : - at a temperature of 20 ? c, the coefficient of linear expansion of standard annealed copper is 0. 000017 per degree centigrade

    線膨脹系數:在溫度20的情況下,標準退火銅的線膨脹系數應是0 . 000017每攝氏溫度。
  20. In this paper i have done several worksuch as : coefficient of thermal expansion of frp sheet is larger different thanthat of the concrete. the interface of frp sheet reinforced concrete will producetemperature stress under the circumstance of temperature difference. i n order todesign the reinforced structure and evaluate safely, it is very significant toanalyse the interface temperature stress and to find the changing law of interfacetemperature stress

    本文重點分析了frp片材補強混凝土梁界面溫度應力分佈理論,解決補強方面的一些工程問題,主要完成了以下幾個方面的研究工作:首先, frp片材的熱膨脹系數與混凝土的熱膨脹系數相差較大,在環境溫差作用下, frp片材補強混凝土界面將產生界面溫度應力,正確分析界面溫度應力和界面應力變化規律,對補強結構設計和安全評價具有重要的意義。
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