湖南科技大学学报(自然科学版)
湖南科技大學學報(自然科學版)
호남과기대학학보(자연과학판)
JOURNAL OF HUNAN UNIVERSITY OF SCIENCE & TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
4期
93-97
,共5页
于站良%施辉献%和晓才%谢刚%钟琦
于站良%施輝獻%和曉纔%謝剛%鐘琦
우참량%시휘헌%화효재%사강%종기
焙烧样品%石墨化制品%热处理%理化性能表征
焙燒樣品%石墨化製品%熱處理%理化性能錶徵
배소양품%석묵화제품%열처리%이화성능표정
calcined samples%Graphitization products%heat treatment%physical and chemical characterization
以经混捏+轧片、冷等静压成型以及焙烧等工序处理后的焙烧样品为原料,通过石墨化热处理后,考察焙烧样品经石墨化热处理前后的组织结构和理化性能.试验结果表明,经2800℃热处理,焙烧样品的结构由杂乱无序的结构转化为有序的三维石墨结构,处理后样品的石墨化度达到62.79%.室温电阻率随石墨化度的增大而下降,随体积密度的增大而下降.同时相比石墨化处理前,抗折强度和抗压强度降低了50%以上.
以經混捏+軋片、冷等靜壓成型以及焙燒等工序處理後的焙燒樣品為原料,通過石墨化熱處理後,攷察焙燒樣品經石墨化熱處理前後的組織結構和理化性能.試驗結果錶明,經2800℃熱處理,焙燒樣品的結構由雜亂無序的結構轉化為有序的三維石墨結構,處理後樣品的石墨化度達到62.79%.室溫電阻率隨石墨化度的增大而下降,隨體積密度的增大而下降.同時相比石墨化處理前,抗摺彊度和抗壓彊度降低瞭50%以上.
이경혼날+알편、랭등정압성형이급배소등공서처리후적배소양품위원료,통과석묵화열처리후,고찰배소양품경석묵화열처리전후적조직결구화이화성능.시험결과표명,경2800℃열처리,배소양품적결구유잡란무서적결구전화위유서적삼유석묵결구,처리후양품적석묵화도체도62.79%.실온전조솔수석묵화도적증대이하강,수체적밀도적증대이하강.동시상비석묵화처리전,항절강도화항압강도강저료50%이상.
The graphitization heat treatment of the calcined samples as the raw material was studied,and these samples were obtained by the process treatment of roasting kneading,shaping and baking.The organization structure and physicochemical properties of these samples before and after graphitization heat treatment were investigated.The results showed that:after the treatment of 2800 ℃,the organizational structure of samples conversion of orderly three -dimensional structure from disordered two -dimensional,and these samples have the characterization of graphite structure,and the graphitization degree reached 62.79%.Room -temperature resistivity increases with the graphitization degree decreases,along with the increase of bulk density decreased, the flexural strength and compressive strength decreased significantly,reduced by 50%.