| Thermal conductivity and rheological properties of graphite/oil nanofluids | |
| Department | 固体润滑国家重点实验室 |
Wang BG(王宝刚)2 ; Wang XB(王晓波)2; Lou WJ(娄文静)2; Hao JC(郝京诚)1,2; Lou WJ(娄文静); Hao JC(郝京诚)
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| 2012 | |
| Source Publication | Colloids and Surfaces A: Physicochemical and Engineering Aspects
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| ISSN | 0927-7757 |
| Volume | 414Pages:125-131 |
| Abstract | A series of colloidal graphite/oil nanofluids were prepared by mechanical ball milling method. Their thermal conductivity (TC) and rheological properties were detailedly investigated. The TC tests show that the TC enhancements of the nanofluids depend strongly on the volume fraction (vol.%) of graphite and increase nonlinearly with increasing loading but have a weak relationship with temperature, and promisingly, only adding 1.36 vol.% of graphite into oil can result in a high TC enhancement of 36%. It is worth noting that the TC enhancement exhibits an abrupt variation, i.e., from 11% to 36%, when the amount of graphite increases from 0.68 to 1.36 vol.%, which could be attributed to the formation of percolating aggregate structures. The rheological measurements were also conducted to demonstrate the microstructure and fluid behaviors of the colloidal graphite/oil nanofluids. Compared with the Newtonian fluid behaviors of base liquids and other nanofluids, the obvious shear thinning, significant viscosity increase, and slight viscoelasticity enhancement for a typical nanofluid sample containing 1.36 vol.% graphite with dispersant can be created, offering the evidence for the formation of percolating aggregate structures. Our results may primarily provide a tremendous step on the way of finding abundant, low cost, commercially available, and high-performance nanomaterials for nanofluid production and secondarily determine if graphite-containing nanofluids toward practical applications are possible. |
| Keyword | Nanofluids Graphite Thermal Conductivity Rheological Properties |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.colsurfa.2012.08.008 |
| Funding Organization | the NFSC (Grant No. 20803087);the Major State Basic Research Development Program of China (973Program) (Grant No. 2007CB607606);the Knowledge Innovation Program of the Chinese Academy of Sciences |
| Indexed By | SCI |
| If | 2.108 |
| Language | 英语 |
| Funding Project | 空间润滑材料组;工业润滑研究组 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3317 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Lou WJ(娄文静); Hao JC(郝京诚) |
| Affiliation | 1.Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Wang BG,Wang XB,Lou WJ,et al. Thermal conductivity and rheological properties of graphite/oil nanofluids[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects,2012,414:125-131. |
| APA | Wang BG,Wang XB,Lou WJ,Hao JC,娄文静,&郝京诚.(2012).Thermal conductivity and rheological properties of graphite/oil nanofluids.Colloids and Surfaces A: Physicochemical and Engineering Aspects,414,125-131. |
| MLA | Wang BG,et al."Thermal conductivity and rheological properties of graphite/oil nanofluids".Colloids and Surfaces A: Physicochemical and Engineering Aspects 414(2012):125-131. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 125-131.PDF（973KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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