Thesis (Ph. D.)--University of Wisconsin--Madison, 1955. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 52-55).

Thesis (M.S.)--University of Wisconsin--Madison, 1958. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 45-47).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1935. / Typescript. With this is bound: Molecular spectrum of cadmium vapor / S. Winston Cram. Reprinted from Physical review, vol. 46 (1 Aug. 1934), p. 205-209. Includes bibliographical references.

Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 109-113).

A grating spectrograph has been constructed using a concave grating with a radius of curvature of 21.07 feet, and ruled at 600 lines/mm. on an aluminum surface. The plate holder, which is loaded in sections with 2 x 18 inch plates, is 13 feet long, and adequately covers the wave-length range from 2000 A to 15,000 A. A water cooled Schüler tube, a helium purifying system and a vacuum arc have also been built and put into operation. The above equipment has been used to investigate the spectra of cadmium, and 51 lines in Cd I and Cd II have been confirmed. Several promising lines , namely λ 4415.62, λ 3533.71 and λ 3250.11, due respectively to the transitions 5p ²P₁⁰[subscript ½] – 4d⁹ 5s² ²D₂[subscript ½], 5p ²P₁⁰[subscript ½] – 4d⁹ 5s² ²D₁[subscript ½], 5p ²P⁰[subscript ½] – 4d⁹ 5s² ²D₁[subscript ½] in Cd II have been carefully studied for isotope shift. The 21 foot grating used in this study had not sufficient resolving power to resolve any structure. A comprehensive table of wave-lengths has been compiled for Cadmium I, II and III. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

Cadmium (Gr. kadmeia - earth), a soft bluewhite metal, is a member of ~roup· II b of the Periodic Table, and lies between zinc and mercury. Cadmium (Cd) possesses the following physical constants: Atomic number 48; atomic weight 112.4; valency 2 and specific gravity a.?. The metal melts at 321°C and boils at ?65°c, and is remarkably volatile for a heavy metal. Its volatility has constituted a special industrial hazard since its b.p. is below the melting point of copper (1083°C), and copper-cadmium alloys were formerly difficult to prepare without gross losses of cadmium into the atmosphere.

Thesis (Ph. D.)--University of Western Sydney, Hawkesbury. / "A thesis submitted in fulfilment of the requirement for the degree of Doctor of Philosophy.

Thesis (doctoral)--München, 1981.

The thermal cycling of cadmium and dilute Cd-Pb alloys was studied by measuring the length change of a specimen as a function of the number of cycles a specimen had undergone. The majority of the experiments were performed using material which had been swaged to 90% reduction in area followed by various amounts of drawing reduction, and which were cycled from 0°C to -190°C. Other areas of interest were the effect of temperature range and grain size on the growth rate, and the effect of cycling on the microstructure and on the axial thermal expansion coefficient. It was found that swaged-and-drawn material cycled from 0 to -190°C, exhibited a three-stage growth curve. The growth rates in Stages 2 and 3 were constant; Stage 1 was ill-defined and was not investigated to any extent. The transition from stage to stage was abrupt and was accompanied by a decrease in growth rate, a lower incidence of non-basal slip and a change in the expansion coefficient. Both the Stage 2 and the Stage 3 growth rates showed a (grain size)¯ ½ dependence and reacted in approximately the same way to alloying in that maxima in both growth rates were indicated for alloys containing between 10 and 50 ppm Pb. The results were interpreted in terms of an idealized model of a textured specimen. The model consisted of a bicrystal representing all grains possessing a given orientation, surrounded by a matrix representing all other grains in the specimen. Stresses are set up in the specimen since the expansion of the textured grains and the matrix grains differ in a given reference direction. These expansion stresses are then relaxed at the upper temperature by creep processes. Stage 3 was identified with the overall cycling mechanism. Stage 2 was considered to result from the interaction of the swaged and the drawn portions of the swaged-and-drawn texture. Stage 1 was believed to result from boundary stresses arising from the differential expansion of adjacent grains. Some experiments were carried out using rolled, drawn and swaged material. The results of these experiments as well as those results obtained by changing the temperature range were used primarily for purposes of comparison to the results obtained from cycling swaged-and-drawn specimens from 0 to -190° C. / Applied Science, Faculty of / Materials Engineering, Department of / Graduate

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