title: A study of high copper amalgams. IV. Formation of eta Cu-Sn (Cu6Sn5) crystals in a high copper dispersant amalgam matrix.
abstract: In an HCD amalgam, eta Cu-Sn crystals were found dispersed within gamma1 matrix areas. Previously, eta Cu-Sn phase was thought to form only as part of a reaction zone surrounding Ag-Cu dispersant particles. The eta Cu-Sn crystals found in matrix areas of this HCD amalgam are smaller and more widely scattered than eta Cu-Sn crystals dispersed in the gamma1 matrix of HCSC amalgams.
mesh_terms: D011232:Chemical Precipitation; D003300:Copper; D003460:Crystallization; D003722:Dental Alloys; D003723:Dental Amalgam; D008628:Mercury; D012834:Silver; D013499:Surface Properties; D014001:Tin
chemical_list: D003722:Dental Alloys; D012834:Silver; D014001:Tin; D003300:Copper; D003723:Dental Amalgam; D008628:Mercury