Three-Dimensional Analysis of a Thermal Dissipation System with a Rectangular Diamond Heat Spreader on a Semi-infinite Copper Heat Sink

An effective thermal analyzer for exploring the thermal performance of 3-D heat spreader having discrete heat sources integrated with heat sink has been successfully developed in the study. The thermal performances such as local temperature distributions and isotherms on heat spreader surfaces; and overall resistance of heat spreader/sink assembly are investigated. Besides, a series of parametric studies have been performed. The parameters and conditions explored include the size and heat dissipation rate of heat sources, size and material of heat spreaders and heat sinks, type of convection in heat sink, and contact conditions between heat spreader and heat sink. The superiority of the developed thermal analyzer through two sample cases having multi-discrete heat sources has finally been demonstrated.

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Temperature distributions in a heat dissipation system using a cylindrical diamond heat spreader on a copper heat sink

Journal of Applied Physics ◽

10.1063/1.356480 ◽

1994 ◽

Vol 75 (2) ◽

pp. 748-757 ◽

Cited By ~ 23

Author(s):

P. Hui ◽

H. S. Tan

Keyword(s):

Heat Sink ◽

Heat Dissipation ◽

Heat Spreader ◽

Temperature Distributions ◽

Dissipation System

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Three-dimensional analysis of heat transfer in a micro-heat sink with single phase flow

International Journal of Heat and Mass Transfer ◽

10.1016/j.ijheatmasstransfer.2004.04.018 ◽

2004 ◽

Vol 47 (19-20) ◽

pp. 4215-4231 ◽

Cited By ~ 183

Author(s):

J Li ◽

G.P Peterson ◽

P Cheng

Keyword(s):

Heat Transfer ◽

Dimensional Analysis ◽

Heat Sink ◽

Single Phase ◽

Three Dimensional ◽

Phase Flow ◽

Single Phase Flow

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In situ investigation of the primary recrystallization of alpha titanium in HVEM

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100110313 ◽

1978 ◽

Vol 36 (1) ◽

pp. 634-635

Author(s):

S. Naka ◽

R. Penelle ◽

R. Valle

Keyword(s):

Dimensional Analysis ◽

Texture Evolution ◽

Cold Work ◽

Three Dimensional ◽

Primary Recrystallization ◽

Thin Foils ◽

In Situ Investigation ◽

Grain Growth Model ◽

Alpha Titanium

The in situ experimentation technique in HVEM seems to be particularly suitable to clarify the processes involved in recrystallization. The material under investigation was unidirectionally cold-rolled titanium of commercial purity. The problem was approached in two different ways. The three-dimensional analysis of textures was used to describe the texture evolution during the primary recrystallization. Observations of bulk-annealed specimens or thin foils annealed in the microscope were also made in order to provide information concerning the mechanisms involved in the formation of new grains. In contrast to the already published work on titanium, this investigation takes into consideration different values of the cold-work ratio, the temperature and the annealing time.Two different models are commonly used to explain the recrystallization textures i.e. the selective grain growth model (Beck) or the oriented nucleation model (Burgers). The three-dimensional analysis of both the rolling and recrystallization textures was performed to identify the mechanismsl involved in the recrystallization of titanium.

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