sic passim [sik'pæsim]
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[拉]全书下同(注释中有某种特殊规定时的行文用语)
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The experimental results show that the content of SiC in RBSC increases with carbon content while α-SiC is chosen as a filler. However, the residual carbon would appear in specimens when the carbon content exceeds 30% by weight. Using carbon felt, the reaction-formed SiC particles are small and uniform in size and distribution. However, when carbon felt is impregnated with phenol resin, the reaction-formed SiC is nonuniform in size and distribution. X-ray diffraction shows that the fabricated RBSC is composed of α-SiC,β-SiC, and free Si. The polytype of SiC is related to the reaction-heat during sintering.
结果表明:选用α-SiC+C粉的混合物作为生坯,SiC相的体积分数随生坯中wC的增加而增加,但过大的wC将使硅化后的试样出现残碳;选用碳毡作为生坯,反应烧结碳化硅的显微组织特点是C/Si反应生成的碳化硅颗粒均匀细小,并呈线状分布在游离硅中;浸渍过树脂的碳毡硅化处理后的显微组织特点是反应生成的碳化硅颗粒粗大且呈不均匀分布。X射线衍射结果也表明,反应烧结碳化硅陶瓷由游离Si、α-SiC、β-SiC组成,试样中不同晶型碳化硅的出现与C/Si反应的放热过程有关。
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X-ray radiography, X-ray radioscopy and X-ray computed tomography were performed to the C preforms and C/SiC composites made by chemical vapor infiltration method. Elementary research of the simulation of X-ray nondestructive testing of C preforms and C/SiC composites was conducted. The main contents and conclusions are summarized as follows:(1) The equivalent absorption coefficients of graphite and SiC to Al (KAl/sic, KAI/C) were measured. It was found that in 35-45KV, KAl/sic=1.1~1.2 and KAl/c=0.08~0.12. That means X-ray radiography was much less sensitive to fiber defects than to SiC matrix. It was suggested that Al Image Quality Indicator would be used to evaluate the quality of X-ray radiographs of C/SiC.
本文选择X射线照相、X射线实时成像和X射线CT等三种方法对C纤维预制体及C/SiC复合材料进行了检测和研究,并对C/SiC复合材料X射线检测的计算机模拟做了初步的探索,主要研究内容和结果如下:(1)测定了C和SiC的X射线照相等效系数,在35~45KV的条件下,Al对SiC的等效系数K_为1.1~1.2,Al对C的等效系数K_为0.08~0.12,所以X照相射线检测C/SiC对C纤维缺陷不敏感,而对SiC基体缺陷敏感。
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The SiC slurry catched high thixotropy when the SiC powders were coated all by hydrophile groups, and the viscosity of the SiC slurry would increase 1236.0mPas suddenly when its solid loading added from 57.4% to 58.5%; If the SiC powders were coated by lipophile group, the thixotropy of the SiC slurry would reduce and the enhancive scope of the high solid loading SiC slurry's viscosity would also be weakened.
改性粉表面全是亲水基团时,料浆触变性大,当固相体积含量由57.4%上升到58.5%时,料浆粘度突然增大1236.0mPaS;随着亲油基团的引入,料浆触变性降低,高固相含量时粘度增大平缓。
- 更多网络解释 与sic passim相关的网络解释 [注:此内容来源于网络,仅供参考]
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史密斯和wace :字典的基督教传(各处):Smith and Wace: Dictionary of Christian Biography (passim)
Smith: Dictionary of the Bible (passim).史密斯:字典的聖... | Smith and Wace: Dictionary of Christian Biography (passim).史密斯和wace :字典的基督教傳(各處) . | Sohar.蘇哈爾. Tikkune haSohar. tikkune h...
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Smith: Dictionary of the Bible (passim):史密斯:字典的聖經(各處)
Sion Ledorosh.錫永ledorosh . | Smith: Dictionary of the Bible (passim).史密斯:字典的聖經(各處) . | Smith and Wace: Dictionary of Christian Biography (passim).史密斯和wace :字典的基督教傳(各處) .
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Smith and Wace: Dictionary of Christian Biography (passim):史密斯和wace :字典的基督教传(各处)
Smith: Dictionary of the Bible (passim).史密斯:字典的聖... | Smith and Wace: Dictionary of Christian Biography (passim).史密斯和wace :字典的基督教傳(各處) . | Sohar.蘇哈爾. Tikkune haSohar. tikkune h...