燒結氧化鋁 的英文怎麼說
中文拼音 [shāojiēyǎnghuàlǚ]
燒結氧化鋁
英文
sintered alumina-
Taking the andalusite from south africa and alumina fiber as raw materials, adding aluminum sulphate as binder, fabrication and properties of alumina fiber reinforced andalusite composite was studied through wet dispersion, mould pressing and sintering processes
以紅柱石和氧化鋁纖維為原料,用硫酸鋁作為結合劑,經過分散、混合、半干法成型、高溫燒成工藝,對氧化鋁纖維增強紅柱石基復合材料的制備及性能進行了研究。Based on the analysis of the characteristics of the raw mix slurry preparing process in alumina sintering production process, firstly, a mechanism model based on material balance principle was established as the master - rule model for the quality prediction ; secondly, considering the problem that the alkali liquor composition was unstable and its real - time measurement was difficult, a nn ( neural networks ) prediction model for the prediction of the alkali liquor composition was set up and nesting - integrated with the mechanism model ; finally, using the gray theory for the information mining from the errors of the mechanism model, a gm ( 1, 1 ) compensation model was put forward and parallel - connection - integrated with the mechanism model, achieving a raw mix slurry quality prediction model
摘要針對燒結法氧化鋁生產過程中生料漿配料工藝的特點,根據物料平衡的原理建立機理模型,作為生料漿質量預測的主規律模型;針對堿液成分波動大且難以實時檢測的問題,對堿液成分含量建立了神經網路預測模型,並和機理模型進行嵌套集成;利用灰色理論對機理模型的偏差數據進行信息挖掘,建立了gm ( 1 , 1 )補償模型,並與機理模型進行並聯集成,獲得生料漿質量預測模型。Available standard ma - spinel bricks differ mainly in the type of magnesia and in the amount and type of their alumina carrier ( sintered and fused ma - spinel , calc. alumina , white fused alumina , etc
目前各種標準的鎂鋁尖晶石磚主要在氧化鎂的數量、種類和它們鋁載體的種類(燒結和電熔鎂尖晶石、鈣,氧化鋁,白電熔等)方面有很大的不同。But it also includes two fatal disadvantages : first, at is difficult to be sintered and its density is low, which causes its lower strength ; second, in the temperature range of 1023 - 15 73 k, at can decompose into al2o3 and tio2 easily, which can cause the stress concentrated and raise the heat expansion rate
但是該材料本身存在的兩大致命的缺點,在很大程度上限制了它的廣泛應用: ( 1 ) 、鈦酸鋁難以燒結,燒結體的緻密度低,因而強度不高; ( 2 ) 、在750 1300的溫度范圍內易分解成氧化鋁和二氧化鈦,造成材料內部應力集中,並使材料的熱膨脹率升高。Effects of heating rates on the sintering behaviors of alumina powders
升溫速率對氧化鋁粉末燒結行為的影響In the alumina process with sintering, the slurry comes out from the grind with low quality because of lots of uncertainty factors and the delay of composition analysis, the qualified raw mix slurry is commonly gained through arranging
摘要由於燒結法氧化鋁配置生料漿過程中不確定性因素多,成分分析滯后,造成生料漿出磨合格率低,一般需經調配使生料漿質量指標符合工藝要求。The results show that : the fillers of sio2 based investment consist of sio2, al2o3 and mgo, and the binder is nh4h2po4 for sio2 based investment, the bulk density and the compression strength decrease, the apparent porosity and the thermal expansion increase, when the specimens are heated to 900 ; the fillers of al2o3 based investment consist of al2o3 and mgo, and the binder is nh4h2po4 ; for al2o3 based investment, the bulk density decreases and the apparent porosity increases when the specimens are heated to 900 ; the fillers of mgo based investment consist of mgo and al2o3, and the binder is ca cement ; for mgo based investment, the compression strength decreases and the thermal expansion increases greatly when the specimens are heated to 900
結果表明:氧化硅系包埋料的骨料是氧化硅、氧化鋁、氧化鎂,結合劑為磷酸二氫銨,其900鍛燒后顯氣孔率增加,體積密度下降,耐壓強度降低,熱膨脹增大;氧化鋁系包埋料的骨料是氧化鋁和氧化鎂,結合劑為磷酸二氫銨,其900燒后顯氣孔率增加,體積密度下降,熱膨脹變化不大;氧化鎂系包埋料的骨料是氧化鎂和氧化鋁,結合劑是鋁酸鈣水泥,其900燒后耐壓強度明顯降低,熱膨脹明顯增大。The influence of microstructure on the flashover performance of alumina ceramics has been studied systematically through investigating the flashover performance of different alumina ceramic samples. experimental results reveal that the flashover performance is affected by the grain sizes and its dispersiveness. the smaller grain size is, the higher flashover performance ; the less dispersiveness of grain sizes is, the higher flashover performance
3 .通過研究用不同工藝制備的氧化鋁陶瓷絕緣子(同一材料配方不同燒成工藝、同樣氧化鋁含量不同添加劑)在沖擊電壓作用下在真空中的沿面閃絡特性和表面帶電特性,首次深入系統地探索了材料微觀結構對陶瓷材料沿面閃絡性能的影響規律。The micromorpholgy and grain boundary microstructure of the material were studied with sem and tem and the grain boundary phase composition were analyzed with eds and x - ray the mechanical properties, micromorpholgy microstructure of grain boundary and phase composition of al2o3 composite ceramics were systematically studied, the effect of additives, the relationship between microstructure and mechanical strength, the sintering mechanism of the material and influence factors of the structure and properties of al2o3 composite ceramics were discussed respectively
系統研究了氧化鋁陶瓷的力學性能、微觀形貌、晶界顯微結構,並討論了各添加組分的作用、材料顯微結構與力學性能的關系以及材料的燒結機理和影響材料結構與性能的影響因素。本論文探討了氧化鋁基復相陶瓷的強韌化機理,實驗表明al _ 2o _ 3 - ticn體系主要是微裂紋韌化。This article studies the main factors, which affect the extract ratio of aluminum oxide from lean alumina ore, such as the ratio of raw material, particle size, broiled temperature, and broiled time
摘要探討了原料配比、粒度以及配料燒結溫度、時間等工藝因素對貧鋁礬土中氧化鋁的提取效率的影響。Through investigating the sinter process of al2o3 and at composite, the sinter parameters of atio5 / al2o3 is obtained
通過對鈦酸鋁與氧化鋁的燒結研究,進一步確定了鈦酸鋁氧化鋁梯度復合材料的燒結工藝制度。Abstract : a formula of sintering furnace charge is of key importance to the technological process of sintering in producing alumina by the methods of mixture combination. the choice of an accurate formula is necessary for gaining a high - quality sinter mixture and a better techni - cal and economic target
文摘:燒結爐料配方,對混聯法生產氧化鋁燒結工藝過程有著十分重要作用,選擇正確的配方,對獲取高質量燒結熟料和較好的技術經濟指標具有十分重要意義。According to the application feedback of the past two decades, s - sic out - performed rb - sic and other engineered ceramic such as alumina, tungsten carbide and graphite
過去二十幾年的應用結果顯示,常壓燒結碳化硅產品的性能明顯優于反應結合碳化硅及其他工程陶瓷(如氧化鋁、硬質合金、石墨) ,可直接取代這些產品的各種應用。In this paper, the alumina ceramic was prepared under normal pressure and low temperature, the mechanical properties, micromorphology, microstructure of grain boundary and phase composition of the alumina ceramic, and the precision shaping and cold processing of the femoral head were systematically studied ; the effects of the additives, the relation between microstructure and mechanical strength, the sintering mechanism of the material and the influence factors of the structure and properties of the alumina ceramic were discussed also
本文在常壓低溫條件下制備了氧化鋁陶瓷,系統研究了氧化鋁陶瓷材料的力學性能、微觀形貌、晶界顯微結構、相組成和股骨頭的精密成型、冷加工,並討論了添加劑的作用、材料顯微結構與力學強度的關系、材料的燒結機理及影響氧化鋁材料結構與性能的因素。The results show that these three kind of materials are effective to reduce the a - phase - transformation temperature and accelerate the a - phase - transformation process. no bough - like structure was found in the doping production of heat - treatment
結果表明:這三種物質均有明顯的降低氧化鋁相變溫度,促進氧化鋁相變的作用,得到的焙燒產物中基本上沒有「樹枝狀」結構。During preparation added mgo etc as mineralization were added to decreases sintering temperature of al2o3, control the mineral composion and microstructure, optimize the performance of heat and mechanics, etc, resulting in its use in regenerative combustion field
在制備過程中,引入mgo等礦化劑來降低氧化鋁的燒結溫度,促進氧化鋁陶瓷的燒結,調整材料的礦物組成,控制材料的顯微結構,優化材料的熱學性能和力學性能等,使其能夠應用於高溫蓄熱燃燒領域。Many researches have showed that the mechanical properties of al2o3 - matrix ceramics in which ti ( c, n ), tic or tin was dispersed could be improved a lot, which might be widely used in the field of machining. al2o3 - matrixed ceramics were fabricated by gas pressure sintering ( gps ) and gps with post - hip based on current techniques in this experiment. for al2o3 - ticn composite ceramics, the densitification process was controlled by the mechanism of solid phase sintering.
大量研究表明:採用ti ( c , n ) 、 tic或tin作為第二相彌散顆粒所制備的氧化鋁基復相陶瓷相對al _ 2o _ 3單相陶瓷而言,性能有了顯著的提高這類復相陶瓷性能優良,在機械加工領域有著廣泛的應用前景本實驗採用氣壓燒結( gps )以及gps結合熱等靜壓( hip )后處理兩種工藝制備氧化鋁基復相陶瓷。Diffuser disc is produced from aluminum oxide and ceramic bonded together with high sintering temperature
性能特點: 1 .曝氣盤採用氧化鋁磨料和陶瓷結合劑高溫燒結而成。The results show that the a - phase - transformation of pure aach can be completed by heating at 1200 ? for two hours. but under this temperature, the alumina particles will be sintered together, which can lead to the formation of bough - like structures. and these bough - like structure will make the powder difficult to be dispersed
接著對碳酸鋁銨進行了焙燒實驗,研究了其在升溫過程中的相變行為,結果表明:純aach在1200保溫1 . 5h的情況下才能100轉變為氧化鋁,而在這樣高的溫度下,粒子之間會形成燒結頸,從而使粉體產物在形貌上出現所謂「樹枝狀」結構,給粉體使用時的分散帶來了困難。Sintered alumina and spinels
燒結氧化鋁和尖晶石分享友人