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Title: Capillary test specimen, system, and methods for in-situ visualization of capillary flow and fillet formation

Abstract

A capillary test specimen, method, and system for visualizing and quantifying capillary flow of liquids under realistic conditions, including polymer underfilling, injection molding, soldering, brazing, and casting. The capillary test specimen simulates complex joint geometries and has an open cross-section to permit easy visual access from the side. A high-speed, high-magnification camera system records the location and shape of the moving liquid front in real-time, in-situ as it flows out of a source cavity, through an open capillary channel between two surfaces having a controlled capillary gap, and into an open fillet cavity, where it subsequently forms a fillet on free surfaces that have been configured to simulate realistic joint geometries. Electric resistance heating rapidly heats the test specimen, without using a furnace. Image-processing software analyzes the recorded images and calculates the velocity of the moving liquid front, fillet contact angles, and shape of the fillet's meniscus, among other parameters.

Inventors:
 [1];  [2];  [1]
  1. (Albuquerque, NM)
  2. (Albuquerque, NM),
Issue Date:
Research Org.:
Sandia National Laboratories (SNL-NM), Albuquerque, NM
Sponsoring Org.:
USDOE
OSTI Identifier:
958133
Patent Number(s):
6,581,438
Application Number:
10/146,095
Assignee:
Sandia Corporation (Albuquerque, NM) ALO
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Hall, Aaron C., Hosking, F. Michael, and Reece, Mark. Capillary test specimen, system, and methods for in-situ visualization of capillary flow and fillet formation. United States: N. p., 2003. Web.
Hall, Aaron C., Hosking, F. Michael, & Reece, Mark. Capillary test specimen, system, and methods for in-situ visualization of capillary flow and fillet formation. United States.
Hall, Aaron C., Hosking, F. Michael, and Reece, Mark. Tue . "Capillary test specimen, system, and methods for in-situ visualization of capillary flow and fillet formation". United States. https://www.osti.gov/servlets/purl/958133.
@article{osti_958133,
title = {Capillary test specimen, system, and methods for in-situ visualization of capillary flow and fillet formation},
author = {Hall, Aaron C. and Hosking, F. Michael and Reece, Mark},
abstractNote = {A capillary test specimen, method, and system for visualizing and quantifying capillary flow of liquids under realistic conditions, including polymer underfilling, injection molding, soldering, brazing, and casting. The capillary test specimen simulates complex joint geometries and has an open cross-section to permit easy visual access from the side. A high-speed, high-magnification camera system records the location and shape of the moving liquid front in real-time, in-situ as it flows out of a source cavity, through an open capillary channel between two surfaces having a controlled capillary gap, and into an open fillet cavity, where it subsequently forms a fillet on free surfaces that have been configured to simulate realistic joint geometries. Electric resistance heating rapidly heats the test specimen, without using a furnace. Image-processing software analyzes the recorded images and calculates the velocity of the moving liquid front, fillet contact angles, and shape of the fillet's meniscus, among other parameters.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {6}
}

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