Word: wert
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Phillip E. Shick, 17, of 1053 West Main street, Van Wert, O.; Van Wert High School; son of Verga R. Shick, city inspector; ranked first among the boys in his class and was local president of the class, captain of the state championship debating team, and winner of the annual Rotary Club of Louisville award...
Probing deeper into the mysteries of the atom, Dr. L. R. Van Wert of the Graduate School of Engineering has devised a new method of investigating the atomic structure of metal alloys. The effects of pressures as high as 20,000 atmospheres on the speed with which certain alloys undergo agehardening are studied in his process...
...Wert's experiments in the High Pressure Laboratories of the Jefferson Physics Laboratory, Harvard University, disclosed that pressures of 12,000 atmospheres applied to the alloys during the process of age-hardening measureably decreased the rate of aging of five age-hardenable alloys which he tested...
...Wert states, "The accelerating effect of temperature on age-hardening is assumedly the result of an increase in the diffusion rate with increase in temperature. Is it not conceivable that pressure's decelerating effect on aging comes about through interference with the diffusion process? High hydrostatic pressures, as we know, compress the metal lattice, in this case, the solvent metal lattice; conceivably the 'viscosity' of, and the difficulty of atomic movement within, the solid solution is proportionately increased, Diffusion then becomes slower and the progress of age-hardening retarded...
Since lead is the most compressible of the three metals, and iron the least, Dr. Wert notes that this relative compressibility might be thought to explain the nature of his results although "one would hardly anticipate from their comparative values that the lead alloy would be many times as sensitive to pressure effects as are the aluminum alloys or that the iron nitrogen alloy would show,--if, indeed, it shows anything,--a sensitivity so small as to escape detection by the usual Rockwell hardness tester...