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Creator:: Holmes, Robert Edward
Abstract:: A survey of the methods of purification of KC1, for use in preparing single crystals by growth from the melt, was made. Two methods, fractional recrystallization and ion exchange, were used. The purity of the salt and crystals grown from the same salt were compared with the findings of other...
Resource Type:: Dissertation
Full Text:: growth. Quincy and La Valle (84, p. 2 -3) extracted a solution of re- crystallized KC1 with

Creator:: Theisen, Floyd Earl
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Chrlrurn of, trhool 0radurtl Om!,ttrr Drra of Orrdurtc S*hao1 Redacted for Privacy

Creator:: Kouts, Daberath
Abstract:: Direct current conductivity measurements on KC1:O[superscript]= crystals were used to determine an enthalpy of 0.42 ev for the dissociation for anion-vacancy-oxide ion complex. The entropy of dissociation was found to be approximately -4x 10⁻⁴ev deg⁻¹. The intrinsic "activation" energy was found to be 1.91 ev as compared to 1.95 ev,...
Resource Type:: Masters Thesis
Full Text:: temperatures. Using the relationship Ag = oh - TAs (21) where oh and A s are the enthalpy and

Creator:: Coker, Earl Howard
Resource Type:: Dissertation
Full Text:: acknowledged. Others to whom thanks is due include Paul M. Gruzensky, who grew one of the crystals used in

Creator:: Woodley, Robert Earl
Resource Type:: Dissertation
Full Text:: specially -purified crystals obtained from Paul Gruzensky and the sulfate -doped crystals obtained from

Creator:: Seevers, Robert Edward
Abstract:: When the dc conductivities of various pure KC1 crystals were compared it was found that crystals grown under an HC1 atmosphere, from salt purified by ion exchange, exhibited lower knee temperatures than any of the crystals studied. These knee temperatures were found to be approximately 350°C. From this the total...
Resource Type:: Dissertation
Full Text:: Diffusion 53 Fick °s Laws of Diffusion 53 Steady -State Solutions, with D Constant 54 Page

Creator:: Halim, Ester Hung-Quei
Resource Type:: Dissertation
Full Text:: ), (12) and (9) give Nc ob N - exp F -W s/2)/kT] (20) In KC1:Ca2+ crystal we solve equations (15

Creator:: Hinks, David George
Abstract:: The incorporation of europium and dysprosium in potassium chloride crystals was investigated. The crystals were prepared by the Kyropoulos method from melts containing the rare-earth chlorides. The concentration of these rare-earth ions in the crystals was determined by neutron-activation analysis. The distribution coefficient of europium and dysprosium between the molten...
Resource Type:: Dissertation
Full Text:: Mechanism s 6 Room-Temperature Coloration 11 Defects Produced 11 Kinetics of F-Center Formation 12 Effect

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