floating zone melting 中文意思是什麼

floating zone melting 解釋
浮區熔化
  • floating : adj. 1. 漂浮的，浮動的，流動性的。2. 【醫學】游離的。3. 移動的；不定的。4. （塗工的）第二道（漆等）。5. （船貨）未到埠的，在海上的，在運輸中的。
  • zone : n 1 【地理】（地）帶。2 區域，范圍，界。3 〈古、詩〉（腰）帶。4 圈，環帶。5 【數學】（球面）帶；...
  • melting : adj. 1. 融[熔]化的。2. 心軟的，受感動的，易感動的。3. 使人感動的，使人感傷的，溫柔的，動人的。
  1. Therefore, in this paper, two directional solidification methods, czochralski method and electron - beam floating zone melting method, were used to obtain such material. the directional solidifition microstructures of si - tasi2 system was performed using neophot - 1, amray - 100b sem and jem - 2000cx tem analysis technique

    本文採用切克拉斯基法（ cz法）和電子束區熔法（ ebfzm ）兩種定向凝固方法制備該共晶自生復合材料；藉助金相技術、電鏡技術、圖象處理技術等多種分析測試手段，考察了si - tasi _ 2共晶定向凝固組織和及其相應的工藝規范。
  2. The results indicate that arc melting is a good method to produce nb - si system intermetallics due to its simpler technics, lower cost and compact products. however, powder metallurgy is found to be not suitable to produce the nb - si system intermetallics due to its coarse and loose products resulting from the poor molding property of nb and si mixed powders. optical floating zone technology, which is used to fabricate nb - si intermetallic composites for the first time, is also found to be a good way to produce nb - si system intermetallics because of its compact products and good property despite of its relatively high cost

    結果表明，電弧熔煉方法制備得到的nb - si系金屬間化合物比較緻密，且制備工藝簡單，經濟實用，是一種合適的nb - si系金屬間化合物制備方法；由於nb 、 si元素粉末的成型性很差，用粉末冶金方法（熱壓燒結和冷等靜壓）制備的nb - si系金屬間化合物表面粗糙、緻密度低，且成本較高，不宜用於制備nb - si系金屬間化合物；首次用光學懸浮單晶生長技術制備的nb - si系金屬間化合物復合材料緻密度很高，盡管成本稍高，但由於性能最佳，也是一種合適的nb - si系金屬間化合物制備方法。
  3. The connection of microstructure and floating zone melting process was studied

    利用ebfzm法，本文研究了區熔工藝和凝固組織之間的關系。
  4. The result indicated that the two phases in eutectic had difficulty in growing regularly on condition that the floating zone melting rate was in the scope of 0 ~ 0. 3mm / min. the matrix phase was directional grown and the other phase was grown with no order

    結果表明，在區熔速率r = 0 0 . 3mm min范圍內兩相很難形成規則共晶，其中基體相定向生長，第二相混亂生長，彌散分佈於基體中。
  5. In this paper, an ingot of niobium - niobium silicide based in - situ composites ( rmics ) was prepared by arc melting process, and nb - nb3si / nb5si3 in - situ composites with a uniformly orientated microstructure were produced in a high temperature gradient directional solidification apparatus named electron beam floating zone melting ( ebfzm ). the relationships between the processing parameters and the characteristics of the solidified microstructure have been investigated. the influence of the microstructure on the mechanical properties has been revealed and the rupture mechanism at room temperature has been discussed

    本文採用真空電弧自耗熔煉法制備了鈮?硅基rmics材料的母合金錠，並採用電子束區熔（ ebfzm ）高溫度梯度定向凝固裝置制備了定向效果良好的nb - nb _ 3si nb _ 5si _ 3共晶自生復合材料，並對其定向凝固工藝參數和組織之間的對應規律、組織特性進行了研究，探討了凝固組織對室溫力學性能的影響及其斷裂機制。
  6. The foundation to develop nb - si system intermetallics base high temperature structure materials has also been established in some degree in this paper. arc melting, powder metallurgy and optical floating zone technology have been used and compared to fabricate the nb - si system intermetallics

    運用電弧熔煉、粉末冶金熱壓燒結、粉末冶金冷等靜壓和光學懸浮單晶生長技術等方法制備了nb - si系金屬間化合物，並對這四種方法制備的nb - si系金屬間化合物進行了比較。
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