Method of predicting and controlling the viscosity of conductive

Details Method of predicting and controlling the viscosity of conductive Method of predicting and controlling the viscosity of conductive

1984-03-19

1986-03-18

Nozick, Bernard

Compositions

Electrically conductive or emissive compositions

Free metal containing

241 4617, H01B 302

Patent

active

045767360

ABSTRACT:
The viscosity of molybdenum paste may be predicted and controlled, by measuring and altering, respectively, the particle packing density of the molybdenum powder used in the paste. For a given vehicle, there is a low correlation between average particle size and paste viscosity, but a high direct correlation between particle packing size and paste viscosity.

REFERENCES:
patent: 4191789 (1980-03-01), Brown et al.
patent: 4207369 (1980-06-01), Kazmierowicz
patent: 4218248 (1980-08-01), Snyder et al.
patent: 4493789 (1985-01-01), Vegama et al.
IBM TDB, vol. 19, No. 9, Feb. 1977, "Viscosity Stabilizer for High Adhesion Metallizing Pastes", D. L. Gorton, H. D. Kaiser & J. B. Rizzuto, p. 3386.
May 1972 Solid State Technology, "A Fabrication Technique for Multilayer Ceramic Modules", H. D. Kaiser, F. J. Pakulski & A. F. Schmeckenbecher, pp. 35-40.
Fisher Model 95 Sub-Sieve Sizer, Fisher Scientific Co., pp. 1-31.
American National Standard, ASTM B430-79, "Standard Method for Particle Size Distribution of Refractory Metal-Type Powders by Turbidimetry", pp. 202-206.
American National Standard, ASTM B 330-76, "Standard Test Method for Average Particle Size of Powders of Refractory Metals & Compounds" by the Fisher Sub-Sieve Sizer, pp. 151-154.

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