碳的轉變 的英文怎麼說
中文拼音 [tàndezhuǎnbiàn]
碳的轉變
英文
carbon change-
Carbon can promote the forming of carbide of fe3c mostly during the ma, while it seems that chromium makes amorphism easier. in addition, this paper also made a research on the milled powder forming technology, and presented some improvement methods
機械合金化過程中,碳元素可以促進以fe _ 3c為主的碳化物的析出,鉻元素使粉末更趨向于非晶態轉變,並使材料出現超順磁現象。Based on the analyses on mechanical properties, microstructure and fracture of - the microalloyed steels socrv with various heat treatment technique, it can be affirmed that various fractures arttribute to various mechanism, we can draw conclusion that the strength and toughness of microalloyed steels 50crv will be increase simultaneously by optimal heat treatment technique. to illustrate the mechanism of the strength and toughness of microalloyed steels socrv, we designed the comparative experiment and observed the microstructure of the sample which occurred at different quench and tempering temperature and different tempering time. the last experiment results were determined by the four factors : fined microalloyed elements grains, the decompound of martensite, martensite transformation of remnant austenite and the second phase precipitation
為解釋微合金化50crv鋼強韌化機理,本文通過對不同淬火溫度,回火溫度,回火時間下的力學性能指標的對比及顯微分析,認為微合金元素的細化晶粒,馬氏體的回火分解,殘余奧氏體的轉變,第二相的沉澱析出共同決定了微合金鋼的強韌化情況,特別是由於微合金元素的存在,其細化晶粒及其碳氮化物的沉澱析出,導致鋼的良好的強韌性,並且如果工藝滿足第二相的沉澱析出強化大於回火馬氏體分解引起的軟化效應,會在硬度曲線中產生明顯的二次硬化現象。In this fashion the four entering carbons of two acetyl-coa molecules are conserved to form one 4-carbon dicarboxylic acid.
用這種方式,由兩個乙酰輔酶A引進的四個碳,轉變成一個四碳二羧酸。Study on the change dynamics of low - carbon microalloy bainite steel
低碳微合金貝氏體鋼的轉變動力學研究The unstable solid solution would disintegrate and transform into carbide phases in these systems of sisocso, tisocso and zrsocso, based on the increase of free energy introduced by the effect mechanical alloying. for the system of wsocso, the solid solution had not transformed into tungsten carbides but an amorphous phase, which was different from those systems. the exist of fe in these experiments, which came from the abrasion of ball - milling tool because of the higher hardness of w and w - c solid solution, would induce the crystalline - to - amorphous phase transformation during milling
C50球磨體系中,繼續球磨時,不穩定的固溶體在機械合金化作用下,由於體系能量提高,會發生分解相變,從而可以形成碳化物;對于w扣c50球磨體系, w ? c固溶體具有較高的硬度,磨削不銹鋼質的球磨介質和球磨容器,而引入雜質,其中fe會促使固溶體向非晶相轉變。Abstract : during the heating of scrap with carbon or hydrocarbon contented substances in some process, it will bring problems like explosion of carbon monoxide, fume and smell from oil volatilization, etc. , if incomplete combustion occurs. through laboratory experiments, the time related variation of gas contents and post combustion ratio of fume during the heating of oil - bearing scrap are studied. the results show that the restrictive chain of reaction procedure is the thermolysis of oil ; that temperature and ( co ) / ( co2 ) ratio influence transformation ratio and post - combustion ratio under lower temperature ; that 900 is the temperature above which the complete reaction can be ensured at all ( co ) / ( co2 ) ratios
文摘:在某些廢鋼熔煉過程中,當爐料中含碳及碳氫物質且燃燒不充分時,會帶來煙氣中一氧化碳的燃爆、油污揮發時造成的煙霧、臭味等問題.通過實驗室裝置研究含油廢鋼在加熱過程中煙氣成分隨時間的改變以及二次燃燒率的變化,試驗結果表明,反應過程的限制性環節是油分的熱分解;在較低的溫度下( co ) / ( co2 )比例影響轉化率和二次燃燒率;而在任意比例下保證充分反應的溫度為900以上This dissertation focuses on how to develop a high performance damping mechanism based on multi - energy transitions, which is independent or little dependant with the viscoelasticity of polymer matrix. three sections are mainly included in this dissertation as follows : chlorinated polyethylene ( cpe ) / piezoelectric ceramic ( pzt ) / vapor grown carbon fiber ( vgcf ) composites ; cpe / 2, 2 ' - methylene - bis - ( 4 - methyl - 6 - cyclohexylphenol ) ( zkf ) / vgcf composites ; organic hybrids made from cpe and small molecules cpe / pzt / vgcf composites : the damping composites of multi - energy transitions mechanism were produced by mixing pzt and vgcf into cpe. in this system, the mechanical vibration energy that was transmitted to cpe was found to convert into joule ' s heat through conduction paths between vgcf in the polymer matrix, so the vibration fades away
本論文主要包括三個方面的研究內容: ?氯化聚乙烯( cpe ) /壓電陶瓷( pzt ) /氣相生長碳纖維( vgcf )復合材料; ? cpe /雙[ ( 2 -羥基- 3 -環己基- 5 -甲基) -苯基]甲烷( zkf ) / vgcf復合材料; ? cpe基有機小分子混雜型復合材料cpe / pzt / vgcf減振復合材料:利用壓電和導電填料填充高聚物基體,當復合材料受到機械振動時,通過高聚物基體將機械振動能傳遞到壓電陶瓷粒子上,利用壓電陶瓷的壓電效應,將機械能轉換成電能,則電流在導電粒子產生的迴路中流動,由於導電迴路具有一定的電阻,所以電能又轉變成熱能耗散掉,從而起到減振的目的。The joint venture we already have on a near zero emissions coal - fired power station is an example of a specific programme that can help reduce emissions, drive down the future cost of low - carbon technologies and lead to the shared development of technology that will be crucial for the global transition to low carbon
我們已經有一個近零排放燃煤電廠合資項目,這是一項計劃的一個範例,這一計劃可以幫助消減排放,降低低碳技術的未來成本,以及引領共同科技發展,這對向低碳的全球轉變至關重要。The organic chemistry is a subject of study the structures, properties, synthesis, reaction the mechanism of organic compound and the changes of carbon compounds of mutually
有機化學是研究有機化合物的結構、性質、合成、反應機理和碳化合物間相互轉變的一門學科。The article study soil enzyme activities and the content of soil organic carbon in zanthoxylum bungeanum forest in karst area of huajiang in guizhou province, the results shows : the content of oxidizable organic carbon was increased with the increasing of plantation age in karst area, which implied karst eco - environment declined
摘要本文通過對花江喀斯特地區花椒人工林演替過程中部分土壤碳轉化酶的活性以及不同活力活性有機碳研究,得出在喀斯特地區花椒人工林中隨著種植年限的增加,土壤中活性有機碳的含量不斷上升,生態環境處于惡化的變化過程中。Soil labile organic carbon is involved in all biological and biochemical processes in soil, the minor change of loc can be detected before the content of total organic carbon ( toc ) in soil has changed, although it accounts for small fraction of toc
土壤活性碳直接參與了土壤生物化學轉化過程,雖然只佔土壤全碳的較小部分,但它們可以在土壤全碳變化之前反映土壤微小的變化。The shift to a low - carbon economy will also bring huge opportunities
向低碳型經濟轉變也將帶來巨大的商機。The second half of the review examines the national and international policy challenges of moving to a low - carbon global economy
研究報告的後半部分探討了向全球性低碳型經濟轉變將要面臨的國內、國際政策的挑戰。She also emphasised the threat china faced from climate change as well as the strategic and economic benefits it could gain from being at the leading edge of the move to a low - carbon, energy efficient world economy : and congratulated china on the pioneering steps that it was already taking in this direction
她還強調,中國面臨著氣候變化的威脅,所以中國需要因此而做出戰略部署,並通過向低碳型、能源有效性的世界經濟形式轉變來獲得利益。對于中國在此方面早已邁出的開創性步伐,她予以了祝賀。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。The research on the effect of liquid - liquid transition of polyacrylate on crystallization - melting of pdms indicates that above the melting temperature of pdms, pdms is reinforced by a special mutual action between p - electron in carbonyl of polyacrylate and 3d orbit in si atom of pdms, while below the temperature, the pdms crystal is lessened, which can not completely remove the crystal of pdms. however, it is the crystallization behavior of pdms that results in its most segments relaxation being restrained
研究聚丙烯酸酯液一液轉變對聚二甲基硅氧烷結晶一熔融影響的結果表明:碳基碳原子上p電子與出原於中3d軌道相互作用,在聚h甲基硅氧烷熔融轉變溫度以上,對其有分子增強作用;在聚二甲基硅氧烷熔融轉變溫度以下,霎對其有降低結晶度的作用,但不能消除結晶現象。When change the component of adhesive its shear strength increased from 39. 3 mpa to 53. 5 mpa at room temperature and it have long - term usage at 180 with 25 mpa and can be served at 230 in short period. the addition of liquid rubber resulted in a 300 % increase in the peeling strength. the addition of polymer ether imide led to a 260 % increase in the peeling strength, a 15 % increase in shear strength and a 10 increase in tg ( tg = 195. 54 )
研究結果表明: bmi dds e ? 51 tde ? 85組成的膠粘劑體系的室溫剪切強度為39 . 3mpa ,當改變環氧樹脂的含量時,剪切強度提高到53 . 5mpa ;用無規羧基液體丁腈橡膠改性環氧樹脂膠粘劑時室溫剝離強度提高3 . 0倍;用聚醚酰亞胺改性環氧樹脂膠粘劑,室溫剪切強度最高可達45 . 2mpa ,剝離強度提高2 . 6倍,玻璃化轉變溫度tg = 195 . 54 ,比未增韌體系提高10以上;碳纖維耐磨材料與同步器圓錐環的粘接實驗結果表明,膠粘劑的使用工藝性能良好,滿足室溫剪切強度30mpa和180剪切強度12 . 5mpa的技術要求。Mdsc and tga results showed that the terpolymer exhibited an extremely high glass transition temperature and decomposition temperature when compared to the copolymer from po and co2
結果表明這些三元共聚物具有較高的分子量,且玻璃化轉變溫度隨著主鏈上的環己撐碳酸酯含量增加而逐漸升高。In view of the main feature of strong anisotropism of reservoir stratum of the paleozoic era carbonate rock in the middle part of ortos basin gas field, mainly by means of random analog formation, this paper makes a quantitative tranformation on the geological study on the area and the descriptive results of the gas pool, and finishes the whole geological model of underground carbonate rock in ortos basin, including the structure model / phy - sical model and fluid distribution model
摘要針對鄂爾多斯盆地中部氣田下古碳酸鹽巖儲層非均質性強的主要矛盾,以隨機模擬建摸為主要方法,對該區地質研究和氣藏描述成果進行定量化轉變,形成了包括構造模型、物性模型和流體分佈模型的鄂爾多斯盆地下古碳酸鹽巖整體地質模型。Transformation and morphology of carbides in high carbon medium - alloy steels during transforming process
三種高碳中合金鋼在熱處理過程中的碳化物轉變及形貌分享友人