rhombohedral adj.斜方六面體的；【化學】棱形的；三角晶的。
adj. 斜方六面體的；【化學】棱形的；三角晶的。 “rhombohedral carbonates“ 中文翻譯： 菱體碳酸鹽類“rhombohedral class“ 中文翻譯： 菱面體晶類; 菱面體類; 菱面體組“rhombohedral crystal“ 中文翻譯： 菱形晶系; 六角晶體“rhombohedral division“ 中文翻譯： 菱形亞晶系“rhombohedral hemihedrism“ 中文翻譯： 菱形半面像“rhombohedral junction“ 中文翻譯： β-菱面體結“rhombohedral lattice“ 中文翻譯： 菱形點陣, 菱形晶格; 三方點格“rhombohedral packing“ 中文翻譯： 菱形體集結“rhombohedral prism“ 中文翻譯： 菱面體棱鏡; 菱形棱鏡“rhombohedral subsystem“ 中文翻譯： 菱體次系“rhombohedral system“ 中文翻譯： 菱方晶系; 菱形晶系“rhombohedral tetartohedrism“ 中文翻譯： 菱形四分面像“rhombohedral tetartohedry“ 中文翻譯： 菱形四分面像“rhombohedral tetrahedry“ 中文翻譯： 斜方正多面像“hexagonal rhombohedral hemibedral class“ 中文翻譯： 六方菱形半面體類“hexagonal rhombohedral hemimorphicclass“ 中文翻譯： 六方菱形異極體“rhombohedral close packing“ 中文翻譯： 菱面體的密集裝填“rhombohedral crystal system“ 中文翻譯： 菱形晶格; 菱形晶系; 三方晶系“rhombohedral iron ore“ 中文翻譯： 赤鐵礦“rhombohedral tetartohedral class“ 中文翻譯： 菱形四分面像類“rhombohedral tetratohedral class“ 中文翻譯： 菱形四分面體類“rhombohedra“ 中文翻譯： 菱面體“rhombograpta“ 中文翻譯： 斜方葉肢介屬“rhombododecahedron“ 中文翻譯： 斜方十二面體“rhomboclase(rhomboclasite)“ 中文翻譯： 板鐵礬“rhomboclase“ 中文翻譯： 板鐵釩; 板鐵礦
rhombohedron |
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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。 |
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We find when cooling rate is fast , with the temperature decresing , the number of icosahedron and the relative numbers of 1551 , 1541 bond types related to the icosahedron decrease obviously ; the total number of 1421 , 1422 bond types related to the cubic ( fcc , bcc ) and hcp structures increase obviously ; and the total number of 1311 , 1301 and 1201 bond types related to the rhombohedral structure increase remarkably , and gradually play a dominant role 發現在冷速很快時,隨著溫度的降低,在ga的微觀結構中,二十面體及與二十面體相關的1551 , 1541鍵型數目明顯下降;與立方體( fcc , bcc ) ,六角密集( hcp )結構相關的1421 , 1422鍵型數目明顯增加;而與菱面體相關的1321 , 1311鍵型的數目卻顯著增加,逐漸占據優勢。 |
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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，采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。 |
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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。 |
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In order to improve the adherence of the film to the substrate and the repeatability of synthesis , we invent a three - step approach , which comprised the steps of turbostratic boron nitride ( tbn ) turning into rhombohedral boron nitride ( rbn ) as the first , rbn turning into cbn as the second and deposition as the last 基于對bn薄膜相結構的分析和優化的沉積條件,制備出立方相含量高達95 %的cbn薄膜。為了改善制備的可重復性和粘附性,提出了三步沉積方法,即將成核過程分成tbn轉化為rbn和rbn轉化成cbn的兩步,加上之后的沉積過程。 |
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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特征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。 |
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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。 |
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Finally , an amorphous structure is formed mainly with rhombohedral structures mixed up with clusters of cubic ( fcc , bcc ) and hcp structures 最后形成一種新型的以菱面體結構為主、夾雜著立方體、六角密集等團簇結構所組成的非晶態結構。 |
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Rhombohedral tetartohedral class 菱形四分面像類 |
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Hexagonal rhombohedral hemibedral class 六方菱形半面體類 |
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Rhombohedral hemihedrism rhombohedral hemihedry 菱形半面像 |
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Hexagonal rhombohedral hemimorphic hemimorphic hemihedral class 六方菱形異極體 |
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Its low temperature form is rhombohedral with an elongation along (111) . 它的低溫形態是沿著111伸長的菱面體。 |