±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 349  |  »Ø¸´: 1
±¾Ìû²úÉú 1 ¸ö ·­ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴

¸ù±¾Í£²»ÏÂ

Í­³æ (ÕýʽдÊÖ)

[ÇóÖú] Çó´óÉñ·­ÒëһС¶ÎÓ¢Óï¡¢¼±¼±¼±!!!

INTRODUCTION
    A thermal shock resistant ceramic in the system Al2O3-ZrO2-TiO2 (AZT ceramic) with an alumina content that was greater than 90 % by weight was developed in previous work.1, 2 Tialite (aluminum titanate), zirconia, and srilankite were identified by XRD as crystalline phases after sintering besides the main component, corundum.
    Aluminum titanate (Al2TiO5) is characterized by a low coefficient of thermal expansion, low modulus of elasticity, and low mechanical strength. These characteristics are mainly caused by the anisotropy of thermal expansion within the tialite crystals leading to localized internal stresses and microcracking
during cooling from sintering temperature.3 Pure tialite tends to decompose to corundum and rutile in the temperature range between approx. 900 ¡ãC and 1280 ¡ãC. The decomposition rate depends on temperature, dwell time, heating rate, phase purity, grain size, and atmosphere.4 The thermal stability of metastable Al2TiO5 can be improved by suitable additives such as MgO which leads to the formation of Al2TiO5-MgTi2O5 solid solution during sintering.5
   After quenching the above-mentioned AZT ceramic from 1200 ¡ãC, X-ray diffractograms indicated decomposition of the aluminum titanate phase. The partial
decomposition of Al2TiO5 was supposed to play an important role in improving the thermal shock resistance of the alumina-based ceramic on quenching. No significant Al2TiO5 decomposition was observed when the AZT ceramic was quenched from 950 ¡ãC.1, 2 This seems to be consistent with findings of Low
and Oo6 who report insignificant decomposition of pure metastable aluminum titanate because of low rates of atomic diffusion below 1000 ¡ãC, but significant
decomposition in the temperature range between 1000 ¡ãC and 1300 ¡ãC.

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

cmds1907

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
¸ù±¾Í£²»ÏÂ: ½ð±Ò+15, ·­ÒëEPI+1, ¡ïÓаïÖú 2014-09-13 22:48:07
ÒýÑÔ
ÔÚÒÔǰµÄ¹¤×÷¡¾1, 2¡¿ÖУ¬¿ª·¢ÁËÒ»ÖÖ¿¹ÈÈÕðÌÕ´É£¬¸ÃÌåϵΪÑõ»¯ÂÁº¬Á¿³¬¹ý90%£¨°´ÖØÁ¿¼Æ£©µÄAl2O3-ZrO2-TiO2(AZTÌÕ´É)¡£ÏñÉÕ½áºóµÄ½á¾§Ï࣬³ýÁËÖ÷Òª³É·Ö¸ÕÓñÖ®Í⣬ÂÁ¼Ù°åîÑ¿ó(îÑËáÂÁ)£¬Ñõ»¯ï¯ºÍï¯îÑ¿óÒѽèÖú XRDÈ·ÈÏ¡£îÑËáÂÁ(Al2TiO5)µÄÌØµãÊǾßÓе͵ÄÈÈÅòÕÍϵÊý£¬µÍµÄµ¯ÐÔÄ£Á¿ºÍµÍµÄ»úеǿ¶È¡£ÕâÐ©ÌØÕ÷Ö÷ÒªÊÇÓÉîÑËáÂÁ¾§ÌåÄÚÈÈÅòÕ͵ĸ÷ÏòÒìÐÔÒýÆðµÄ£¬Õâµ¼Ö´ÓÉÕ½áζÈÀäȴʱµÄ¾Ö²¿ÄÚÓ¦Á¦ºÍ΢ÁÑ·ì¡£¡¾3¡¿ÔÚ900¡ãCºÍ1280¡ãCµÄζȷ¶Î§ÄÚ£¬´¿îÑËáÂÁÍùÍù»á·Ö½â³É¸ÕÓñºÍ½ðºìʯ¡£Æä·Ö½âËÙÂÊÈ¡¾öÓÚζȡ¢Í£Áôʱ¼ä¡¢ÉýÎÂËÙÂÊ¡¢Ïà´¿¶È¡¢Á£¶ÈºÍÆø·Õ¡£¡¾4¡¿ÑÇÎÈ̬µÄAl2TiO5µÄÈÈÎȶ¨ÐÔ¿ÉÒÔͨ¹ýºÏÊʵÄÌí¼Ó¼Á£¨ÀýÈçMgO£©Ìá¸ß£¬Ëüµ¼ÖÂÔÚÉÕ½á¹ý³ÌÖÐAl2TiO5-MgTi2O5¹ÌÈÜÌåµÄÐγɡ£¡¾5¡¿ÉÏÊöAZTÌÕ´É´Ó1200¡ãC´ã»ðºó£¬ XÉäÏßÑÜÉäͼ±íÃ÷îÑËáÂÁÏàµÄ·Ö½â¡£ÔÚÌá¸ßÑõ»¯ÂÁ»ùÌմɵĿ¹ÈÈÕð´ã»ðÖУ¬Al2TiO5µÄ²¿·Ö·Ö½âÓ¦¸Ã·¢»ÓÖØÒªµÄ×÷Óᣵ±AZTÌÕ´É´ã»ð´Ó950¡ãCʱ£¬Ã»Óй۲쵽Al2TiO5µÄÏÔÖø·Ö½â¡£¡¾1, 2¡¿ÕâËÆºõÊÇ·ûºÏµÍÊÀµÄÑо¿½á¹û£¬Oo¡¾6¡¿±¨µÀÁË´¿ÑÇÎÈ̬µÄîÑËáÂÁµÄ΢²»×ãµÀµÄ·Ö½â£¬ÒòΪµÍÓÚ1000¡ãCÏÂÔ­×ÓÀ©É¢µÄµÍÀûÂÊ£¬µ«ÊÇÔÚ1000¡ãCµ½1300¡ãCµÄζȷ¶Î§ÄÚÔòÏÔÖø·Ö½â¡£
2Â¥2014-09-13 22:44:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ ¸ù±¾Í£²»Ï µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 0854Çóµ÷¼Á +4 assdll 2026-04-05 4/200 2026-04-06 12:29 by ÖзÉÔº¿Õ¹ÜѧԺÑ
[¿¼ÑÐ] ÇóÖú071001µ÷¼Á£¡£¡£¡ +4 »ÆÊØËÉ 2026-04-05 5/250 2026-04-06 10:55 by 1028907439
[¿¼ÑÐ] µÚÒ»Ö¾Ô¸¶«ÄÏ´óѧÎïÀí313£¬ÓпÆÑоºÈü»ñ½±¾­Àú£¬Ï£ÍûÎïÀí¸´ÊÔµ÷¼Á +3 ÂíÄÚ³È 2026-04-05 3/150 2026-04-06 10:32 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 085600£¬320·ÖÇóµ÷¼Á +7 ´ó²öС×Ó 2026-04-01 8/400 2026-04-05 21:19 by ѧԱ8dgXkO
[¿¼ÑÐ] 326Çóµ÷¼Á +3 ¹ËÈô¸¡Éú 2026-04-05 3/150 2026-04-05 18:32 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 304Çóµ÷¼Á£¨085602£¬¹ýËļ¶£¬Ò»Ö¾Ô¸985£© +15 »¯¹¤ÈË999 2026-04-04 15/750 2026-04-05 16:25 by ÎÒÊǵç·çÉÈr
[¿¼ÑÐ] 290Çóµ÷¼Á +7 luoziheng 2026-04-04 7/350 2026-04-04 23:17 by lqwchd
[¿¼ÑÐ] 344²ÄÁÏÓ뻯¹¤µ÷¼Á +9 µ÷¼ÁÉϰ¶«^ 2026-04-03 9/450 2026-04-04 23:10 by happyddm
[¿¼ÑÐ] ¿¼Ñе÷¼Á +6 15615482637 2026-04-04 6/300 2026-04-04 22:43 by yu221
[¿¼ÑÐ] 301Çóµ÷¼Á +18 ÂæÍÕÄÐÈË 2026-04-02 18/900 2026-04-04 20:33 by À¶ÔÆË¼Óê
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ324Çóµ÷¼Á +9 hanamiko 2026-03-30 9/450 2026-04-04 11:04 by Öí»á·É
[¿¼ÑÐ] 294Çóµ÷¼Á +6 Grey_Ey 2026-04-03 6/300 2026-04-03 20:46 by ÐÀϲ777
[¿¼ÑÐ] 372·Ö²ÄÁÏÓ뻯¹¤£¨085600£©Ò»Ö¾Ô¸ºþÄÏ´óѧÇóµ÷¼Á +3 À¶¼ãƬ 2026-04-03 4/200 2026-04-03 17:58 by Jimmyandyou
[¿¼ÑÐ] Ò»Ö¾Ô¸¸´µ©²ÄÁÏ£¬Ó¢Ò»×¨Ë¶£¬×Ü·Ö357µ÷¼Á +4 1050389037 2026-04-02 5/250 2026-04-02 21:40 by dongzh2009
[¿¼ÑÐ] Ò»Ö¾Ô¸Î人Àí¹¤0856£¬³õÊÔ334 +3 26¿¼ÑвÄÁÏ 2026-04-02 3/150 2026-04-02 21:22 by dongzh2009
[¿¼ÑÐ] ũѧ¿¼ÑÐÇóµ÷¼Á +3 dkdkxm 2026-04-01 3/150 2026-04-02 16:04 by wangjagri
[¿¼ÑÐ] 261ÇóBÇøµ÷¼Á +5 Ã÷×С¤ 2026-04-01 7/350 2026-04-02 11:17 by ×Þξξ
[¿¼ÑÐ] 279Çóµ÷¼Á +6 ѧ¶øË¼ÙâÖª 2026-04-01 6/300 2026-04-02 09:16 by vgtyfty
[¿¼ÑÐ] 311Çóµ÷¼Á +10 ÀîÜÆÐÂ1 2026-03-31 10/500 2026-04-01 14:38 by chenqifeng666
[¿¼ÑÐ] ºÏ·ÊÇøÓòÐÔÖØµãÒ»±¾ÕÐÊÕµ÷¼Á +4 6266jl 2026-03-30 8/400 2026-03-31 18:43 by 6266jl
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û