high permeability materials 中文意思是什麼

high permeability materials 解釋
高導磁率材料
  • high : adj 1 高的〈指物，形容人的身高用 tall〉；高處的；高地的。2 高級的，高等的，高位的，重要的。3 高尚...
  • permeability : n. 1. 透過性，可透性，滲透性；滲蝕度；【航空】（氣球氣體的）透出量。2. 【物理學】磁導率，磁導系數（＝magnetic permeability）。
  • materials : 版本
  1. It focuses on the theory of the mineral functional materials " improving the anti - chloride permeability and the chloride binding. the main achievements of this article include : 1 ) use the technology of xrd, sem, bet, laser particle size distributor etc to test the component, the construction, particle size distributor, specific surface etc of micro - silica, ultra - fined slag, high quality fly ash, meta - kaolin clay, four types of the mineral functional material, theoretically analysis the functions which the four mineral functional minerals act on cement concrete, namely pozzolanicity effect, filling effect, micro - aggregate effect, surface adsorption effect and so bring into play the affect of plastification, lowing of temperature, reinforcement, improvement of durability. base on this analysis we can conclude that the proper diameter of the mineral functional material is 5 m - 15 m, that is blain fineness 4500cm2 / g - 7500cm2 / g

    本論文的主要成果包括以下幾個方面： （ 1 ）採用xrd 、 sem 、 bet 、激光粒度分析儀等多種測試手段，探明了以硅灰，超細磨粒化高爐礦渣，優質粉煤灰及偏高嶺土超細粉等4種超細礦物功能材料的組成、結構、粒度分佈、比表面積等基本性質；從理論上分析了礦物功能材料在混凝土中的4種效應，即火山灰效應、填充密實效應、微集料效應、表面吸附效應，並由此發揮出增塑、溫峰削減（降熱） ，增強及耐久性改善等作用；通過相關理論分析，推導出礦物功能材料的合理粒徑范圍在5 m 15 m ，即勃氏比表面積為4500cm ~ 2 g 7500cm ~ 2 g 。
  2. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。
  3. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。
  4. Especially y - ni - 22fe, which have been widely used in industry things such as magnetic record heads, transformers or magnetic shielding materials due to its high permeability, low coercive force and relatively high saturation magnetization

    特別是- ni - 20fe合金，因其較高的磁導率、飽和磁化強度、低的矯頑力而廣泛用於磁記錄頭、變壓器和磁屏蔽材料等。
  5. This paper is to study the object of mn - zn ferrite powder, which is an important non - metallic magnetic materials, because of their narrow hysteresis loop, high magnetic permeability and high resistivity, high curie temperature and the low loss characteristics are widely used in many electronic industrial fields

    這種磁性微粒經局部注射或經動脈導管注入瘤體后，在交變磁場作用下吸收電磁波轉化為熱能使腫瘤區升溫達所需的治療溫度（ 41 46 ） ，以殺死腫瘤細胞，而不含磁微粒的正常組織不受損，正逐漸成為醫學上腫瘤熱療技術的研究對象。
  6. Some successful examples include nickel - free metal alloys for watch and jewellery, advanced encapsulates with low moisture and tailored modulus for electronic packaging, textiles treated with nanostructured materials and water repellent apparels with high air permeability, and air purification system that removes odour and kills bacteria by photocatalytic nano - coating

    成功例子包括：手錶及珠寶專用的無鎳合金；電子封裝所需的低水分和特定模數的先進封裝材料；經納米結構材料處理的布料及透氣度高的防水衣物；以及利用光催化納米塗層技術，能夠除臭殺菌的空氣凈化系統。
  7. So the study of high permeability on mn - zn ferrite materials is an important way

    所以研究高磁導率mn - zn鐵氧體材料是軟磁鐵氧體研究的一個重要方向。
  8. High permeability soft magnetic mn - zn ferrite materials is a wide used functional materials

    高磁導率軟磁mn - zn鐵氧體材料（以下簡稱鐵氧體）是應用非常廣泛的一種功能材料。
  9. In this dissertation, high permeability mn - zn ferrites have been prepared by the mixed - oxide route, using mn3o4, fe2o3 and zno as the raw materials. and in this dissertation we study deeply on the preparation technology and mechanism of high initial permeability mnzn ferrite with better stability of which the initial permeability was 10000

    本文採用氧化物陶瓷工藝制備高磁導率mnzn鐵氧體，以mn3o4 、 fe2o3和zno為原料，對磁導率為10000且具有寬頻特性的高磁導率mnzn鐵氧體的制備技術和機理進行研究。
  10. Nanostructured fe - ni alloy have been particularly emphasized because of their high permeability, low coercive force and relatively high saturation magnetization. fe - ni alloy fiber were also used as wave - absorbing materials. fe - co, co - ni, fe - co - ni alloy were armphous soft magnetic materials

    其中fe - ni合金是纖維狀的非晶態的軟磁材料， fe - co合金為球形， co - ni合金也是球形，相互聯結成鏈狀。
  11. Much of this damage can be avoided by using corrosion protection systems such as low - permeability concrete, high - performance concrete, corrosion - inhibiting admixtures, epoxy - coated steel reinforcement, corrosion - resistant steel reinforcement, waterproofing membranes or sealants, or combinations of the previously mentioned methods and materials

    許多這樣的腐蝕破壞可以採取系列防護措施加以避免，包括低滲透混凝土、高性能混凝土、鋼筋阻銹劑、環氧塗層鋼筋、耐腐蝕鋼筋、防水膜或封閉層等，或者上述方法、材料的聯合使用。
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