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ÓÐË­ÖªµÀÌÕ´É»ù¸´ºÏ²ÄÁϵÄÏà¶ÔÃܶÈ(relative density)ÊÇʲô?
ÎÒÖÆ±¸SiO2/SiO2¸´ºÏ²ÄÁϵķ½·¨ÊÇsilicasol-infiltration-sintering·½·¨¡£
²Î¿¼ÎÄÏ×£ºMechanical properties and microstructure of 2.5D (shallow straight-joint) quartz fibers-reinforced silica composites by silicasol-infiltration-sintering£»Ceramics International, In Press, Corrected Proof, Available online 10 August 2011
Yong Liu, Jianxun Zhu, Zhaofeng Chen, Yun Jiang, Chengdong Li, Binbin Li, Long Lin, Tianru Guan, Zhaohai Chen
±à¼­¸øÎÒµÄÒâ¼ûÊÇÎÒÖÆ±¸µÄ¸´ºÏ²ÄÁϵÄÏà¶ÔÃܶÈ(relative density)ÊǶàÉÙ¡£ÎÒ²»ÖªµÀÎÒÖÆ±¸µÄÕâ¸ö²ÄÁϵÄrelative densityÊÇʲôÒâ˼£¬Ë­ÄܰïÎÒ½â´ðһϰ¡£¬Íò·Ö¸Ðл£¡×îºÃÒ²¸øÎÒ·¢¼¸ÆªÓÐÏà¹Ø   ¸´ºÏ²ÄÁÏÏà¶ÔÃܶȵÄÎÄÏ×£¬¶àл£¡[ Last edited by À¶¬1989 on 2011-10-4 at 21:20 ]
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yumo821

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relative density is the ratio, in 100% form, from the density of your sample to the real density of SiO2 ceramic(you can check it in Wiki or else). for example 90%.
2Â¥2011-10-05 00:28:40
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

À¶¬1989

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by yumo821 at 2011-10-05 00:28:40:
relative density is the ratio, in 100% form, from the density of your sample to the real density of SiO2 ceramic(you can check it in Wiki or else). for example 90%.

ллÄãµÄ»Ø´ð¡£Õâ¸öÎÊÌâ¾À½áÎҺܾÃÁË£¬ÎÒ»¹²»ÊÇÌØ±ðÃ÷°×£¬  ÎÒÄܼÓÄãQQÏêÁÄÂ𣿣¿£¿ÎÒ¶®Á˵ϰ  ¿Ï¶¨¸øÄú¼ÓÉϽð±Ò£¬Íò·Ö¸Ðл£¡
3Â¥2011-10-05 09:02:01
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

À¶¬1989

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by yumo821 at 2011-10-05 00:28:40:
relative density is the ratio, in 100% form, from the density of your sample to the real density of SiO2 ceramic(you can check it in Wiki or else). for example 90%.

ллÄãµÄ»Ø´ð£¬Ð´ÖÐÎÄÊDz»ÊǸüºÃµãÄØ£¿¾ßÌåÎÒ»¹²»ÊǺܶ®£¬ÄÜÏêϸµãÂ£¿Èç¹ûÓм¸ÆªÎÄÏ×רÃÅдÏà¶ÔÃܶȵľ͸üºÃÁË£¬ÄÜ·¢¸øÎÒÂð£¿
4Â¥2011-10-05 09:25:50
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

À¶¬1989

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by yumo821 at 2011-10-05 00:28:40:
relative density is the ratio, in 100% form, from the density of your sample to the real density of SiO2 ceramic(you can check it in Wiki or else). for example 90%.

¹Ø¼üÊÇÕâ¸ö°Ù·Ö±ÈÊÇÔõôȷ¶¨µÄ£¿ÎÒ²»´ó¶®Ïà¶ÔÃܶÈÖÐµÄ ¡°Ïà¶Ô¡±µÄÒâ˼
5Â¥2011-10-05 09:28:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yumo821

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flyingsnow4(½ð±Ò+2, CM-EPI+1): ¸ÐлÄãµÄ¿¶¿®°ïÖú£¬EPIһö£¬»¶Ó­³£À´Å¶ 2011-10-12 12:53:55
first, test your samples density D1, like Archimedes methods.
second, try to find the real density of SiO2 D2, internite
at  last, the relative density=D1/D2*100%.
I think its easy.
you can conect with me by Email: yumo821@sohu.com
6Â¥2011-10-11 06:37:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

kukoob

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flyingsnow4(½ð±Ò+1): лл»ØÌû½»Á÷£¬»¶Ó­³£À´¸´²Ä°æÅ¶ 2011-10-12 12:58:45
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7Â¥2011-10-11 07:07:21
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

À¶¬1989

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
7Â¥: Originally posted by kukoob at 2011-10-11 07:07:21:
Ïà¶ÔÓÚÌմɵÄÃܶȣ¡

°´ÕÕÄúµÄÒâ˼ÊÇ£ºÎÒÖÆµÃµÄ¸´ºÏ²ÄÁϵÄÃܶÈ/SiO2µÄÃܶÈ=Ïà¶ÔÃܶȣ¿£¿¿ÉÊǰٶÈÉÏдSiO2µÄÃܶÈÊÇ2.2 ¡«2.66£¬Õâ¾ßÌåÊýÖµÔõÃ´È¡ÄØ£¿£¿£¿     ÕâÑùËã³öÀ´µÄÏà¶ÔÃܶÈÖ»ÓÐ0.77×óÓҵİ¡£¡
8Â¥2011-10-11 08:37:58
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

À¶¬1989

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
6Â¥: Originally posted by yumo821 at 2011-10-11 06:37:15:
first, test your samples density D1, like Archimedes methods.
second, try to find the real density of SiO2 D2, internite
at  last, the relative density=D1/D2*100%.
I think its easy.
you can co ...

°´ÕÕÄúµÄÒâ˼ÊÇ£ºÎÒÖÆµÃµÄ¸´ºÏ²ÄÁϵÄÃܶÈ/SiO2µÄÃܶÈ=Ïà¶ÔÃܶȣ¿£¿¿ÉÊǰٶÈÉÏдSiO2µÄÃܶÈÊÇ2.2 ¡«2.66£¬Õâ¾ßÌåÊýÖµÔõÃ´È¡ÄØ£¿£¿£¿     ÕâÑùËã³öÀ´µÄÏà¶ÔÃܶÈÖ»ÓÐ0.77×óÓҵİ¡£¡
9Â¥2011-10-11 08:40:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yumo821

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À¶¬1989(½ð±Ò+50): Thank you. You are knowledgeable, kind and beautiful ! 2011-10-12 10:11:48
I think that should be right, 77%. One suggestion, as a material science student, you should learn how to use google, wiki, databases and articles to find data,I mean the real density of SiO2. Baidu is not professinal. Good luck.
10Â¥2011-10-12 02:46:59
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ À¶¬1989 µÄÖ÷Ìâ¸üÐÂ
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