sintering rate 中文意思是什麼
-
Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )
本研究以武裝直升飛機防護裝甲材料為研究對象，採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料，結合其力學性能、掃描電鏡和界面微區能譜分析結果，分析了sic _ p al復合材料的真空燒結過程中的界面現象，以及材料增強和斷裂機理，並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態（應變率為3 . 3 10 ~ （ - 3 ） s ~ （ - 1 ） 5 . 2 10 ~ 3s ~ （ - 1 ） ）的壓縮破壞響應進行了研究，分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下，材料的變形和微觀損傷機理，以及利用高速沖擊空氣炮測定了改復合材料制備剃度復合板的穿透性能。 -
This paper systematically discussed the fundamental, characteristics, research status and equipment of microwave sintering, and introduced the preparation and development of sintered ndfeb magnets, on the basis of which the effects of the parameters on the heating rate and sintering temperature were investigated. and by means of optical metallurgical analysis, x - ray diffraction analysis and the measurement of density and magnetic properties, the paper compared the properties and technology of ndfeb magnets sintered in microwave magnetic field with that of magnets sintered in conventional heating process
本文系統論述了微波燒結基本原理、特點、研究現狀和燒結設備，介紹了燒結ndfeb制備工藝和發展，在此基礎上研究了微波磁場燒結ndfeb永磁材料過程中各因素對升溫速率、燒結溫度的影響，並通過金相顯微分析、 x射線衍射分析、密度及磁性能測試等手段，將微波磁場燒結的ndfeb磁體與常規燒結的磁體進行了工藝與性能的對比分析。 -
The preparing process is as follow : mixing the nickel salt, zirconium salt and stabilizer in the solvent ( distilled water ) to prepare mixing solution according to a certain ratio ; commingling the mixing solution and coordination solution of carboxylic ammonia in accordance with a certain rate to form sol, drying the sol and turning it into gel, pre - sintering the gel to get the zro2 - nio powders and the zro2 - ni nanocrystalline composite powders were gained by reducing the zro2 - nio powders
方法如下：將鎳鹽、鋯鹽、穩定劑和水溶劑按所需成分配成混和溶液，再將混和溶液、外加劑按比例混和形成溶膠，溶膠經乾燥成為凝膠，凝膠經預燒得到ysz - nio氧化物納米粉末，將該氧化物粉術還原得到ysz - ni納米復合粉術。絡合。 -
In this study, the preparing processes of zro2 - ni nanocrystalline composite powder aremixing the nickel salt, zirconium salt and stabilizer, solvent ( distilled water ) together to prepare the mixing solution according to certain ratio ; commingling the mixing solution, coordination solution of carboxylic ammonia, intrusion aid in accordance with certain rate to form sol, drying the sol and turning it into gel, pre - sintering the gel to get the zro2 - nio powder and gaining zro2 - ni nanocrystalline composite powder by reducing the zro2 - nio powder. xrd, x - ray wide - angle diffractometer, bet, sem, tem, hrtem analyses are used to study the zro2 - ni nanocrystalline composite powder and zro2 - ni cermet. the sintering temperature is determined
本研究的zro _ 2 - ni納米復合粉末的制備方法如下：將鎳鹽、鋯鹽、穩定劑和溶劑（水）按所需成分配成混合溶液，再將混合溶液、外加劑和氨羧絡合劑按比例混合形成溶膠，溶膠經乾燥成為凝膠，凝膠經預燒得到zro _ 2 - nio納米粉，將該氧化物粉還原得到zro _ 2 - ni納米復合粉。 -
We need to start their sintering at same temperature and to ensure conductor paste and green - sheet ceramic bodies have the same shrinkage rate
為了消除二者之間的燒結應力，共燒導帶漿料與aln生坯必須同時進入燒結狀態，具有相同的收縮特性。 -
Moreover, the sio2 / tio2 composite thin film showed the lowest pl intensity due to a decrease in the recombination rate of photo - generated electrons and holes under uv light irradiation, which further confirmed the film with the highest photocatalytic activity at 700 c. when the calcination temperature was higher than 700 c, the decrease in photocatalytic activity was due to the formation of rutile and the sintering and growth of tio2 crystallites resulting in the decrease of surface area
同時，此時sio _ 2 / tio _ 2復合薄膜的熒光光譜顯示最低的熒光強度，這表明此時薄膜中的光生電子和空穴的復合速率最低，因而更有利於物質的光催化降解。當熱處理溫度高於700時，武漢理工大學碩士學位論文薄膜的光催化活性下降，這是由於薄膜中晶相二氧化欽的燒結和成長導致樣品的表面積下降以及金紅石相的形成。 -
The wear rate increased with the increase of load, and it decreased with the increase of the nanosized al2o3 content. the parameters of hot - press sintering process, the temperature and the pressure, affected the wear resistance of cu - ( al2o3 ) n composite, that is, the high temperature and the high pressure had increased the wear resistance of cu - ( al2o3 ) n composite
隨著載荷的增加，復合材料的磨損率隨之增加；復合材料的耐磨性與增強相含量有關，隨著增強相含量的增多，抗磨損性能增加；復合材料耐磨性的高低與熱壓參數有關，熱壓溫度高、熱壓壓力大，燒結好的材料的耐磨性能好。 -
The balling effect of 316 stainless steel powder was studied, and the effects of process parameters, such as laser power, scan rate, and layer thickness, on the success of laser sintering were discussed
分析了316不銹鋼粉末球化效應產生的原因，討論了工藝參數（激光功率、掃描速度和粉層厚度）對316不銹鋼金屬粉末燒結成形的影響。
分享友人