燒結金屬學 的英文怎麼說
中文拼音 [shāojiējīnzhǔxué]
燒結金屬學
英文
ceramal(s)- 燒 : Ⅰ動詞1 (使東西著火) burn 2 (加熱或接觸某些化學藥品、放射性物質等使物體起變化) cook; bake; hea...
- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 金 : Ⅰ名詞1 (金屬) metals 2 (錢) money 3 (古時金屬制的打擊樂器) ancient metal percussion instrum...
- 屬 : 屬名詞1 (類別) category 2 [生物學] (生物分類系統上所用的等級之一) genus 3 (家屬; 親屬) fami...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 金屬 : metal
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Using in situ formation of ternary boride base cermets hard phases through chemical reactions and sinterbonding onto steel substrates though liquid sintering we successfully prepared a kind of ternary boride base cermet
摘要通過化學反應將原料粉來生成三元硼化物硬質相併通過液相燒結燒與鋼很好的結合,用這種工藝成功地在鋼基體上塗覆了預壓制的三元硼化物基金屬陶瓷。Examination of the density, strength, hardness and microstructure showed that the mechanical properties and structure of the part made by direct metal forming process are better than that obtained from selective laser sintering process, as good as or even better than castings
對成形件進行的密度、強度和硬度指標測試和金相組織觀察表明:基於弧焊的直接金屬成形件的組織結構和力學性能指標明顯優于選擇性激光燒結工藝成形件,達到或高於鑄造零件。In this paper, nanosized al2o3 ceramic particles were chose as reinforcing phase. enhanced with ultrasonic wave the particles were covered with copper using method by electroless plating, the copper - matrix composite was developed by hot - press sintering process of the composite powder. the composition, microstructure, hardness, density and dry sliding wear property of the new material have been studied
研究路線為:選用納米級al _ 2o _ 3陶瓷顆粒作為增強相,在超聲波的環境中用化學鍍的方法完成對納米al _ 2o _ 3陶瓷顆粒表面的金屬銅包覆,採用熱壓燒結成型技術以復合粉末為原料制備成納米al _ 2o _ 3陶瓷顆粒增強銅基復合材料,研究分析復合材料的成分、組織結構、硬度以及緻密度,對試樣進行了干滑動摩擦磨損實驗。Powder metallurgical materials and products - methods of testing sintered metal materials and products, excluding hardmetals - preparation of samples for chemical analysis for determination of carbon content
粉末冶金材料和製品.第3部分:燒結金屬材料和製品不包活硬質合金試驗方法.第3節:測定碳含量用化學分析樣品制備It is these particles that can change nitriding layer microstructure and that accelerates the layer formation. nitrogen is infiltrated through the surface of metals and it changes the chemical components. as a result, the surface of metal has good performance with high hardness, high resistant attrition, high fatigue strength, high resistant erode and resistant die burn
這些高能粒子可以改變滲層組織,結構和促進化學反應過程,加速滲層形成,使氮元素滲入金屬表面,從而改變金屬表面的化學成分,使之具有高硬度、高耐磨性、高疲勞強度、高腐蝕能力及抗燒傷性。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。In this work, layered lini1 - xalxo2 ( 0 < x 1 / 2 ) solid solution materials were successfully synthesized by current co - precipitation method in the air, and their preparation and properties were deeply and systematically explored. influences of different factors on the structure and properities of samples were studied, including li resources, different performs, li / m ( oh ) 2 molar ratio, calcining heat condition, the best synthesis technics were concluded : sintered for 16h at 700 from li source ( lithium nitrate ) : m ( oh ) 2 = 1. 05 : 1, ultrasonic vibration for dispersing and catalysing are best. lini0. 8al0. 2o2 exhibited a discharge capacity of 130. 7 mah ? g - 1 in the voltage range of 2. 8 ~ 4. 40v and at a specific current of 0. 2 c. a new co - precipitation method was proposed, it included ultrasonic for dispersing and catalysing, by dropping lioh to the aqueous solution of metal nitrates, hydroxides of metals were precipitated and the resulting solution was evaporated as received
採用傳統共沉澱工藝在空氣氣氛中成功地合成出了二元lini1 - xalxo2 ( 0 < x 1 / 2 )層狀固溶體系列,綜合考察了不同鋰源、預處理方式、鋰的配比量、焙燒溫度等條件對合成產物的結構和性能的影響,確定出了最佳合成工藝:以硝酸鋰為鋰源,超聲波作為分散動力源,鋰源與鎳鋁金屬鹽摩爾比為1 . 05 : 1 , 700下焙燒16h的lini0 . 8al0 . 2o2樣品電化學性能最佳,在2 . 8 ~ 4 . 40v之間, 0 . 2c的倍率放電可逆容量達130 . 7mah ? g - 1 。This paper is concentrated on preparing si3n4 / sic, si2n2o / sic and o ' - sialon / sic by reactive sintering techniques. the components of raw materials and microstructure of these three ceramics were studied. at the same time, molten al, cu, zn, mg and cryolite corrosion resistance of silicon nitride bonded silicon carbide were tested too
本論文通過成份及微結構設計,採用反應燒結工藝制備了力學和抗氧化性能優異的o ' - sialon sic 、 si _ 2n _ 2o sic和si _ 3n _ 4 sic陶瓷材料,並研究了它們的抗鋁、銅、鋅、鎂有色金屬熔體及冰晶石熔鹽侵蝕性能。At the same time, a modified calcination method was first put forward, that is, after the first calcination, additional annealing was enforced. by the use of the thermal analysis, xrd, partical size, specific surface area and electrochemical measurement, the structure and performance of the product were studied, and the synthesis process was optimized by comparing structure and performance with one another
通過優化合成工藝,發現ph值在2 3之間、 paa與金屬離子的摩爾比為1 . 4 : 1 、燒結溫度為550 、燒結時間在10h左右時所得產物有良好的結構和電化學性能。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。The preparation, mechanical properties of alumina material and machining of femoral head for bioceramic - metal articulated partial hip joint prostheses were studied in this paper, which provided the research results being worth theoretical reference and practical use for the solving of technical problems of sintering and machining of alumina ceramic
本文研究高性能氧化鋁生物陶瓷?金屬配伍型人工半髖關節股骨頭材料的制備、力學性能及假體的成型加工工藝,為解決氧化鋁陶瓷燒結、機加工等技術難題提供具有一定理論參考和實際應用價值的研究結果。分享友人