0
TECHNICAL PAPERS: Heat Transfer in Manufacturing

Detailed Numerical and Experimental Investigation of Non-Isothermal Sintering of Amorphous Polymer Material

[+] Author and Article Information
R. M. Tarafdar

Novellus Systems, Inc., 3940 North First Street, San Jose, CA 95134

T. L. Bergman

Department of Mechanical Engineering, 191 Auditorium Drive, Unit 3139, University of Connecticut, Storrs, CT 06269e-mail: tberg@engr.uconn.edu

J. Heat Transfer 124(3), 553-563 (May 10, 2002) (11 pages) doi:10.1115/1.1459732 History: Received April 05, 2000; Revised October 09, 2001; Online May 10, 2002
Copyright © 2002 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Schematic diagram of one dimensional sintering of a porous medium. The conditions illustrated are the initial condition (left) an intermediate time (middle) and later time (right). Thermal and sintering penetration depths are noted.
Grahic Jump Location
Shape evolution of two equal sized spheres with definitions of variables. The initial (top left), intermediate (top right) and complete (bottom) sintering conditions are shown.
Grahic Jump Location
Diagram of (a) control volumes associated with a column of spheres and (b) thermal expansion of the lower spheres in the column
Grahic Jump Location
Diagram of (a) the test cell and (b) the experimental apparatus
Grahic Jump Location
Experimental measurements and predictions of the expansion and contraction of the column of spheres for Experiments 1, 2, and 3. The vertical fiducial marks are associated with the time when there is predicted interference between the medium and the walls of the test cell.
Grahic Jump Location
Predicted and measured neck radii for Experiments 1, 2, and 3
Grahic Jump Location
The predicted temperature distributions for a medium composed of 100 μm particles with 180°C bottom surface temperature. Distributions are shown at 60 s, 180 s, and 300 s.  
Grahic Jump Location
Dimensionless neck radii distributions for media composed of (a) 50 μm, (b) 100 μm, and (c) 250 μm particles at different times with 180°C and 30°C bottom and initial temperatures. Also shown is (d) the change in the height of the medium with time.
Grahic Jump Location
Dimensionless neck radii distributions for media composed of (a) 50 μm, (b) 100 μm, and (c) 250 μm particles at different times with 170°C and 30°C bottom and initial temperatures yielding θ1=0.82. Also shown is (d) the change in the height of the medium with time.
Grahic Jump Location
Results showing (a) the thermal penetration depth (b) the sintering penetration depth and (c) ratio of the penetration depths for a medium composed of 100 μm particles column with different θ1
Grahic Jump Location
Results showing (a) the thermal penetration depth (b) the sintering penetration depth and (c) ratio of the penetration depths for a medium composed of 100 μm particles column with different θ2.
Grahic Jump Location
The ratio of sintering penetration depth to the thermal penetration depth for different dimensionless temperatures. Numerical predictions are denoted by the data points.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In