tetragonal 中文意思是什麼

tetragonal 解釋
adj. 形容詞 1. 四角[邊]形的。
2. 【物理學】正方晶的。

  1. No evidences of low - temperature phase transition were found for pbtio3, while the tetragonal - orthogonal and orthorhombic - rhombohedral phase transitions were present for batio3

    沒有發現鈦酸鉛存在低溫相變的證據，而鈦酸鋇則存在四方正交和正交三角鐵電相變。
  2. In the orthorhombic phase, the desorption activation energy has an obvious increase with the increase of temperature, while it varies smoothly in the tetragonal phase as the temperature increases

    當樣品為正交相時，脫附活化能隨著溫度的升高明顯增加，而四方相時則變化比較平緩。
  3. The xrd peak of 2 6 = 45 ? was gradually widened with the increasing of pt. it might mean that rhombohedral phase was gradually converted to tetragonal phase in this system

    在pmn - pt系統中，隨著pt含量的增加， 2 = 45的xrd特徵峰出現明顯峰寬化現象，表明pmn - pt由三方相逐步向四方相轉化。
  4. It has been found that all the elements in the addition act respectively in the way that affect the material ' s properties during the calcining process and the increase of the pms / pzn ratio can weaken the stability of the crystal structure of the sintered ceramics and cause the crystal structure transformation from the tetragonal to the rhombohedral as well

    發現多元壓電陶瓷材料中，無論是主加組元還是微量摻雜，預燒階段，它們在陶瓷中的作用都表現為單獨離子對陶瓷結構和性能所起的作用。燒結后，隨著pms pzn相對量的提高，陶瓷晶體結構由四方相向三方相轉化，同時穩定性下降。
  5. Bct body - centered tetragonal lattice

    體心正方晶格
  6. Calculation of special point - set for deformed body - centered tetragonal lattice

    變形體心四方點陣特殊點集的計算
  7. Tetragonal crystal system

    四方晶系
  8. Implants for surgery. ceramic materials based on yttria - stabilized tetragonal zirconia

    外科植入物.基於氧化釔穩定處理的四方形鋯陶瓷材料
  9. Standard specification for high - purity dense yttria tetragonal zirconium oxide polycrystal for surgical implant applications

    外科植入用高純度密集三氧化二釔四氧化鋯多晶體的標準規范
  10. Non - metallic materials for surgical implants - specification for ceramic materials based on yttria - stabilized tetragonal zirconia

    外科植入非金屬材料.基於氧化釔穩定處理的四方形氧化鋯陶瓷材料規范
  11. 7 ) by using in - situ hydrothermal synthesis and sol - gel complex method a stoichiometry tetragonal perovskite pbti03 ceramic film was successfully prepared on tini substrate

    通過採用原位水熱solgel復合合成法，在tint基體上成功制備了結構較為緻密的pbtio 。
  12. Traditionally it is considered that particles are formed into the single - chain structure, while the body - centered tetragonal ( bct ) structure comes into being when the particle volume is a little high. and the other structure models such as the layer model, the fiber model, the column model and so on

    粒子發生聚集所形成的結構傳統的認為是單鏈模型，而當粒子的體積濃度比較大時，一般認為是體心四方結構（即bct模型） ，此外還有諸如層結構模型、纖維結構模型、圓柱結構模型等等。
  13. Based on recent published research, explanation about the experimental results was also given. remanent polarization and coercive field decreased with the increasing of la content. the crystal structure transformed from tetragonal to cubic when la concentration increased to 28mol %

    在薄膜的鐵電性質方面，隨著摻鑭含量的升高，剩餘極化和矯頑場逐漸降低；當鑭含量達到28mol時薄膜的結構從四方相轉變到立方相。
  14. The influence that the zr / ti ratios have on the ceramic crystal structure and its properties are studied through the research carried out about the relative respects of the fabricated samples. the increase of zr / ti ratio can result in the crystal structure transformation from the tetragonal to the rhombohedral, it can also induce the weakness in the stability of the ceramic crystal structure, for example, the drop in the curie temperature. in order to enhance the relative low mechanical quality factor of pzn - pzt system piezoceramics, component addition pb ( mn1 / 3sb2 / 3 ) o3 ( hereafter abbreviated as pms ) are introduced in to form a new psudo - tetragonal system ceramics

    為獲得具有高的機電耦合系數kp ，高的機械品質因數qm的高性能壓電陶瓷，採用二次合成法制備了不同zr ti比的鈮鋅酸鉛-鋯鈦酸鉛基（ pzn - pzt ）三元系壓電陶瓷材料，研究了zr ti比變化對陶瓷結構和性能的影響規律，發現zr ti比增大除了可以使陶瓷的相結構由四方相向三方相轉化外，還降低了陶瓷的結構的穩定性，使tc溫度下降。
  15. Alloy fabricated by arc melting consists of continuous nbssi matrix and dispersive distributed nb particles. the metastable nbasi phase is found to have a tetragonal crystal structure with space group p42 / n and lattice parameters a = 1. 021nm, c = 0. 519nm

    O 0 ）金屬間化合物的顯微組織由連續的nb3si基體、彌散分佈的nb粒子組成，其中亞穩態相nb3si為四方結構，空間群p42 n ，點陣常數a l
  16. The tetragonal phase of pbtio3 is very stable owing to its large tetragonal strain, and relatively small tetragonal stain of batio3 is an important reason for its low - temperature phase transition

    由於鈦酸鉛具有較大的四方應變，使得其能夠在四方相穩定下來，而鈦酸鋇較小的四方應變是其仍能夠發生低溫鐵電相變的一個重要原因。
  17. The results indicate that the osc and reductibility of the ceo2 - zro2 solid solution are not improved after adding e ions. while after incorporating m ions into the ceo2 - zro2, the samples exhibit high osc probably by reason that m - o itself also has good capability of oxygen adsorption. after aged at high temperature, the osc of these samples decreased dramatically for the formation of m2o3 and mo2 and for the separation of tetragonal phase of ceo2 - zro2

    在ceo _ 2 - zro _ 2固溶體中引入m后，由於m - o本身具有氧吸附性能，使得樣品表現出很好的儲氧能力，但經過高溫老化后，原四方晶相的ceo _ 2 - zro _ 2固溶體發生了相分離，且生成了大量的m _ 2o _ 3和mo _ 2相，使得樣品的儲氧量急劇減少，可還原性能明顯降低。
  18. The appropriate calcinations temperature is about 700, and the tetragonal sno2 phase crystal structure of the particles remained unchanged when sb was doped to it. as the calcinations temperature increasing and the calcinations time prolong, the size of particles grows and the crystallization tend to be complete. study on the electrical properties of ato powders prepared by hydrothermal synthesis was performed in - depth, the most optimal electrical properties are obtained at doping ratio of 11 percent

    水熱法制備的ato納米粉體在熱處理溫度700左右較為適宜，銻的摻雜並未改變粉體的四方相金紅石結構，隨銻摻雜量的增加，粉體的粒度變小；隨熱處理溫度的升高和熱處理時間的延長， ato粉體的粒度增大，晶體結構趨于完整。
  19. The addition of y - zro2 improves the fracture toughness of pcd and the grinding ratio also increases with the y2o3 content increasing. the optimum comprehensive properties of pcd can be achieved as the y - zro2 powders contain 2mol % y2o3. aluminum addition in si3n4 or si3n4 bond pcbn can prevent y - zro2 powders from forming the nontransformable tetragonal phase

    在si _ 3n _ 4及si _ 3n _ 4中介結合的pcbn中加入適量的al作為燒結助劑，可以避免不可相變的t相zro _ 2形成，使應力誘導相變增韌高溫高壓燒結的氮化硅系陶瓷成為可能。
  20. Piezoelectric properties were detected, it is suggested that the optimum poling condition is maintaining 15 minutes under 4kv / mm, poling temperature is 70 xrd results indicate that the fabric transited from rhombohedral to tetragonal gradually with the substitution of the ba2 +. morphotropic phase boundaries ( mpb ) of the ceramic exist in the composition range of x = 0. 06 ~ 0. 10

    Xrd分析表明，隨著ba ~ （ 2 + ）取代量的增加，樣品晶體結構逐漸由三方相向四方相轉變，在x = 0 . 06 0 . 10組成范圍內存在三方、四方相共存的準同型相界。
分享友人
分享到 Line

分享到臉書