Explanation Given: Dimensions of the epoxy laminate is 6 in × 8 in . Thermal conductivity of the epoxy laminate is 0.10 Btu / h ⋅ ft ⋅ ° F . Thickness of the epoxy laminate is 0.05 in. Thermal conductivity of the copper is 223 Btu / h ⋅ ft ⋅ ° F . Diameter of the copper filling is 0.02 in. Center to center distance between the copper fillings is 0.06 in. Calculation: Calculate the number of copper fillings. n c o p p e r = 6 in × 8 in 0.06 in × 0.06 in = 13333 The area of the copper fillings is, A c o p p e r = n c o p p e r [ π 4 d 2 ] = 13333 [ π 4 ( 0.02 12 ft ) 2 ] = 0.02909 ft 2 The area of the epoxy board is, A e p o x y = A t o t a l − A c o p p e r = ( 6 12 × 8 12 ft 2 ) − ( 0

5th Edition

ISBN: 9780078027680

Author: Yunus A. Cengel Dr., Robert H. Turner, John M. Cimbala

Publisher: McGraw-Hill Education

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Processing of Polymer Matrix Composites

The polymer matrix composite is described as a composite material that contains some polymer in the form of either fibers or powder. Polymer matrix composites are also known in short as PMC's.

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Chapter 17, Problem 56P

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The new thermal resistance of the epoxy board after the modification.

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Chapter 17, Problem 55P

Chapter 17, Problem 57P

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Fundamentals of Thermal-Fluid Sciences

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