Copley, S.M.

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Lawrence Berkeley National LaboratoryRecent WorkTitleINDEPENDENT SLIP SYSTEMS IN CsCl- TYPE CRYSTALSPermalinkhttps://escholarship.org/uc/item/6c7168h8AuthorCopley, S.M.Publication Date1963-07-25eScholarship.org Powered by the California Digital LibraryUniversity of California;. ·'· , ' •' ' 1 UCRL-f0918 Urliversity of California Ernest 0. · lawrence Radiation laboratory . INDEPENDENT SLIP SYSTEMS IN CsCl-TYPE GR YSTALS S .. M. Copley . , . July 25. '1963 TWO-WEEK LOAN COPY This is a library Circulating Copy which may be borrowed for two weeks. For a personal retention copy, call Tech. Info. Dioision, Ext. 5545 DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor the Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof, or the Regents of the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof or the Regents of the University of California. ' \ ' UNIVERSITY OF CALIFORNIA Lawrence Radiation Laboratory Berkeley, California Contract No. W-7405-eng-48 INDEPENDENT SLIP SYSTEY~ IN CsCl-TYPE CRYSTALS s. M. Copley July 25, 1963 UCRL-10918 t'. I -1- UCRL-10918 INDEPENDENT SLIP SYSTEMS IN CsCl-TYPE CRYSTALS By s. M. Copley Ceramic Laboratories, Department of Mineral Technology, and Inorganic Materials Research Division, Lawrence Radiation Laboratory University of California, Berkeley, California July 25, 1963 In a recent paper, Groves and Kelly (1963) examined the slip systems observed in a number of simple ceramic materials to see whether they allow the crystal to undergo an arbitrary strain without change in volume~ In this paper they stated that the slip systems in CsCl-type crystals were the {1001 <o10> referencing a paper by Rachinger and Cottrell (1956). Actually, Rachinger and Cottrell showed that slip occurs on the {110) (001~ slip systems in CsCl-type crystals which tend toward ionic bonding such as the thallium halides, LiTl, MgTl, AuZn, and AuCd, while in the case of CuZn in which bonding is of metallic character slip occurs on the {110}<1i1) slip systems. Johnson and Pask (1963) have recently shown that in CsBr slip occurs on the {110} <OOl) slip systems. The {llO}(OOl)yield three independent slip systems and, thus, a general deformation is not possible. Extensions parallel to the crystal axes cannot be produced. There are 16 ways of choosing the 3 independent slip systems from the 6 physical slip systems~ The {110}(1i11 slip systems are the same as found in bee metals and are discussed by Groves and Kelly in their papero ACKNOWLEDGMENTS I am grateful to Dre Jo ~ Pask with whom I have discussed this paper. This work was performed under the auspices of the u.s. Atomic Energy Commission. . ' -2- UCRL-10918 REFERENCES Groves, G. W., and KellyJ A. 1 1963, Phil. Mag., .§., 877 • . Johnson, L. D., and Pask, J. A., 19631 Mechanical Behavior of Single-Crystal and Polycrystalline Cesium Bromide, Report UCRL-10468 Rev., Inorganic Materials Research Division, Lawrence Radiation Laboratory, University of California, Berkeley. Rachinger, W. A. 1 and Cottrell, A. H., 19561 Acta Met. 1 fb 109. 

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INDEPENDENT SLIP SYSTEMS IN CsCl- TYPE CRYSTALS

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INDEPENDENT SLIP SYSTEMS IN CsCl- TYPE CRYSTALS

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