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ความคิดเห็นที่ 28 |
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เอามาให้ดูคร่าวนะครับ ใช้วิจารณญานเอาเองนะครับว่าความเชื่อหรือความจริง โฆษณา http://www.evrmemories.com/cremation-diamonds-s/81.htm http://news.hunsa.com/detail.php?id=10476
บทความ
Sintered glass–ceramic from municipal solid waste incinerator ashes M. Aloisi, A. Karamanov *, M. Pelino Department of Chemistry, Chemical Engineering and Materials, University of L’Aquila, Monteluco di Roio, 67040 L’Aquila, Italy Available online 18 September 2004 Abstract
In the present study, the sinter-crystallization behavior of a glass from municipal solid waste incineration ashes was investigated. The crystallization kinetics were estimated by DTA at different heating rates and the formed crystalline phases were evaluated by XRD. The sintering was studied at different heating rates and at different holding temperatures by dilatometry, measuring the % of linear shrinkage, while the structure of the sintered samples was observed by SEM. The bending strength and the Young modulus were evaluated after heating at 5 and 20K/min and 1h holding at 1123K. The DTA show two overlapped crystallization peaks, corresponding to 440 and 430kJ/mol activation energies of crystallization. The XRD highlight that the crystallization starts by pyroxene formation, followed by anorthite and gehlenite. The sintering of the glass particles is inhibited by the crystalline phase formation and stops after the formation of 10% of crystal phase. Higher densification may be obtained by applying fast heating rate (20 K/min), which also improves the mechanical properties.
ที่มา http://docs.google.com/viewer?a=v&q=cache:Yx072EI33AgJ:www.ipc.bas.bg/PPages/Karamanov/23-2004JNCS.pdf+Sintered+glass%3Fceramic+from+municipal+solid+waste+incinerator+ashes&hl=th&gl=th&pid=bl&srcid=ADGEEShkXX4bynqOPwDRtyoiuV2ZN1WEt7-FiNRFNMKI3P3i6vUGjHlI2Yo9n95y7clwOr6b47-H-4Uo7jLqXZYCtu966cJjSpneuV3TO6EMTrBpmtV1UdYIRP3RCA5ptKd9is7jodxm&sig=AHIEtbSaC42JPB1MG4t5x8SaEC4ti_LZ7Q
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