??¦Ë??????????????????? B?ÈÉ??????Cr????????? 24????????????51.996?????????????‰^??????????+2??+3??+4??+5??+6?????????????????????????????????????????¦Î????????????????????????????????§ß???????????????????????7.1??cm3?????1860??—¨?§Ö?2680?—¨???????46l J/( kg?? K) (0 - iOOCc)??????209 kJ/mor?????????????????342.1 kJ/mol???????91.3 W/(m??K)????????(20??)13.2 PQ‘cm??
???????????????????????????????????????????????????????????????????????§Û??????????????????????????????Cr2 03?????18% - 62%????????????????????????§³??????ÈÉ?????????????????????ÈÉ???????????????????????????5.5 -7.5?????4.0-4.8 g/cm???????????????????????????????Fe0.Cr203????Cr20 368%??Fe032%???§Û?????????????? Cr203??????30%?????
???????§Ú???t?????????????????—¨???t????????t???????????????4?????????t??????(Mg??Fe) CrZ04??Cr??03????50% - 60%??????????(Mg??Fe)( Cr??Al)?? 04??Cr2 03????32%-50%?????????(Mg??Fe)(Cr??A1)04??Cr203???? 32%-38%??????????????????????>5.5?????4.448 -4.19 g/cm3??????????????????§ß?????????5.5?????4.73 g/cm3?????????????????????????????????????????5.5??7.5?????4.0 -5.1 g/cm3??
???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
