氧化鐵鐵心 的英文怎麼說
中文拼音 [yǎnghuàtiětiěxīn]
氧化鐵鐵心
英文
oxide core-
Dimensions of toroids made of magnetic oxides or iron powder
磁性氧化物或鐵粉環形磁心的尺寸Metal : it is used for a centreless grind with precision ceramics and magnetic iron oxide
1 .金屬法:用於精密陶瓷磁性氧化鐵材質無心研磨。A little ferrite and cementite, through the analysis of the strengther and ductiler, we draw the conclusion that this is very important in reality, observing the graphite nodule in sem and tem, there are many spheroiding element and anti - spheroiding elements in the core and edge of graphite nodule, they form the oxides sulphide and nitride. we draw the conclusion that they may be the core of graphite nodule
在掃描電鏡( sem )與透射電鏡( tem )上觀察石墨球,與傳統石墨球相比低碳球鐵的石墨球呈細小點狀分佈,球墨中心聚集有較多的球化元素而在邊緣處分佈有反球化元素。石墨球中心存在有氧化摘要一物、硫化物以及氮化物等組成的復雜的化合物,經分析認為它們是球狀石墨形核的有效核心。Specifically, professor murad laboratory was the first to discover the involvement of cyclic gmp in the vasodilatory actions of no as well as drugs that release no, such as the anti - anginal drug nitroglycerin and the anti - hypertensive drug sodium nitroprusside
酸和氧化氮導致的血管舒張的關連以及能刺激氧化氮釋放的藥物如抗心絞痛藥? ?三硝酸甘油酯和抗高血壓藥? ?亞硝基鐵氰酸鈉。The formation process of w - type ferrite underwent from oxide of metal, the m - type transition phase to final w - phase. when the heating rate was 5 / min, at 900 for 3 hrs and 1200 for 4 hrs, pure m - type and w - type ferrites were formed in air respectively. with heat treatment temperature increasing, crystal structure was more intact, the saturation magnetization increased and the coercive force decreased
熱處理過程表明, m型鐵氧體直接由金屬氧化物反應形成,未經歷尖晶石中間相; w型鐵氧體形成由金屬氧化物到m相過渡相最終向w相的轉變;當升溫速率為5 min ,溫度在900 ,保溫3小時和1200保溫4小時,就分別形成單相m相和w相鐵氧體;隨著熱處理溫度的升高和保溫時間的延長,衍射峰變尖銳,結晶更完整,空心微球的飽和磁化強度增大,矯頑力減小。With heat treatment temperature increasing, the complex permittivity of w - type ferrite hollow microspheres decreased ; " firstly increased and then decreased, increased and there was an obvious resonance peak ; the complex permittivity ? of m - type ferrite hollow microspheres increased ; " increased, " was basically unchangeable
隨熱處理溫度的升高, w型鐵氧體空心微球的介電常數降低;磁導率實部先增加后減少,虛部增加並出現明顯的共振峰; m型鐵氧體空心微球的介電常數增加,磁導率實部增加,虛部變化不明顯。1. nizn ferrite was developed for using in mini high frequency dc - dc converters and inductors. we measured and analysed the parameters of the nizn ferrite, which we concern about when designing the dc - dc converter. 2. the low loss sample of nizn ferrite were chosen for design - optimization of the high frequency transformer. based on the relevant theoretical researches, the loss properties of the magnetic core material and winding were analyzed in this thesis
因此,以nizn功率鐵氧體材料為開關電源芯材為基礎,並優化各種開關電源的設計已成為國際上的熱點和技術瓶頸,本論文正是以上述背景為研究目標而開展工作的,主要進行的工作和創新有: 1 .對研製的新型高頻低功耗的功率nizn材料進行參數的測試,並針對dc - dc變換器設計關心的參數對芯材特性進行了分析,選擇在特定頻率下,功耗較小的nizn材料磁芯樣品作為變壓器優化設計的預備磁芯。分享友人