|本期目录/Table of Contents|

[1]袁慧雯,廖伟,石宇,等.纳米Al2O3复合铝酸盐水泥基储热材料的性能[J].南京工业大学学报(自然科学版),2014,36(04):24-28.[doi:10.3969/j.issn.1671-7627.2014.04.005]
 YUAN Huiwen,LIAO Wei,SHI Yu,et al.Properties of aluminate cementitious thermal storage materials incorporated with nano-Al2O3[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2014,36(04):24-28.[doi:10.3969/j.issn.1671-7627.2014.04.005]
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纳米Al2O3复合铝酸盐水泥基储热材料的性能()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
36
期数:
2014年04期
页码:
24-28
栏目:
出版日期:
2014-07-01

文章信息/Info

Title:
Properties of aluminate cementitious thermal storage materials incorporated with nano-Al2O3
文章编号:
1671-7627(2014)04-0024-05
作者:
袁慧雯廖伟石宇陆春华倪亚茹兰祥辉许仲梓
南京工业大学 材料科学与工程学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
YUAN HuiwenLIAO WeiSHI YuLU ChunhuaNI YaruLAN XianghuiXU Zhongzi
State Key Laboratory of Materials-Oriented Chemical Engineering,College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
纳米Al2O3 水泥基储热材料 热性能 力学性能
Keywords:
nano-Al2O3 cementitious thermal storage material thermal properties mechanics properties
分类号:
TB34
DOI:
10.3969/j.issn.1671-7627.2014.04.005
文献标志码:
A
摘要:
研究不同掺量的纳米Al2O3(平均粒径为80 nm)和不同热处理温度(105、350和900 ℃)对铝酸盐水泥基复合储热材料的热学性能(体积热容、热导率和热膨胀系数)和力学性能(抗压强度)的影响。采用X线衍射仪(XRD)和场发射扫描电子显微镜(FESEM)分别表征水化浆体内产物的物相和形貌变化。结果表明:当纳米Al2O3的质量分数为5%时,纳米Al2O3复合浆体的热容、热导率和抗压强度相对较高; 随着温度的升高,纳米Al2O3复合浆体的热容、热导率和抗压强度都有一定程度的下降; 在350和900 ℃热处理后,纳米Al2O3复合浆体的热容、热导率和抗压强度高于纯浆体。
Abstract:
The influence of different contents of nano-Al2O3(the average size of 80 nm)and different temperatures(105 ℃,350 ℃ and 900 ℃)for heat-treatment on thermal properties(volume heat capacity,thermal conductivity,and thermal expansion coefficient)and the compressive strength of aluminate cementitious composite materials for thermal energy storage were studied.Then X-ray diffraction(XRD)and field-emission scaning electron microscopy(FESEM)were used to characterize the phase change and the microstructure evolution,respectively.When the nano-Al2O3 amount was 5%,the volume heat capacity,thermal conductivity,and compressive strength of the composite paste were higher than those of pure paste.Results indicated that with the increasing of temperature, the volume heat capacity,thermal conductivity and compressive strength of the composite pastes decreased.After heating at 350 ℃ and 900 ℃,the properties of the composite pastes were better than those of pure paste.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-10-30
基金项目:材料化学工程国家重点实验室开放课题(ZK201211); 江苏高校优势学科建设工程; 江苏省普通高校研究生科研创新计划(CXLX11_0347)
作者简介:袁慧雯(1987—),女,江苏张家港人,博士生,主要研究方向为水泥基复合储热材料; 陆春华(联系人),教授,E-mail:chhlu@njtech.edu.cn; 许仲梓(联系人),教授,E-mail:zzxu@njtech.edu.cn..
更新日期/Last Update: 2014-07-31