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Author:

宋维龙 (宋维龙.) | 鹿院卫 (鹿院卫.) (Scholars:鹿院卫) | 吴玉庭 (吴玉庭.) (Scholars:吴玉庭) | 马重芳 (马重芳.)

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CQVIP PKU CSCD

Abstract:

为探究纳米粒子对低熔点混合硝酸盐热物性的影响规律,采用高温熔融分散法将平均粒径20 nm的SiO_2纳米粒子以1%(质量)比例直接分散到混合熔盐[Ca(NO_3)_2?4H_2O-KNO_3-NaNO_3-LiNO_3]中得到不同分散条件下的熔盐纳米复合材料。采用同步热分析仪(DSC)与激光闪射仪(LFA)测量熔盐纳米复合材料比热容与热扩散系数,进而得到热导率。分析发现,600 r/s搅拌速率下熔盐纳米复合材料热物性随分散时间(15,45,90,120和150 min)发生明显变化。比热容、热扩散系数和热导率在分散45 min时提高率最大,平均提高率分别为11.5%,12.9%和26.4%。扫...

Keyword:

熔盐 纳米粒子 微观结构 熔融分散 热物性

Author Community:

  • [ 1 ] 北京工业大学传热强化与过程节能教育部重点实验室暨传热与能源利用北京市重点实验室

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Source :

化工学报

Year: 2018

Issue: 09

Volume: 69

Page: 4114-4120

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 13

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