The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2009
Filed:
Jul. 18, 2006
Brian C. Lacourse, Pepperell, MA (US);
Morteza Zandi, Webster, MA (US);
Brian C. LaCourse, Pepperell, MA (US);
Morteza Zandi, Webster, MA (US);
Saint-Gobain Ceramics & Plastics, Inc., Worcester, MA (US);
Abstract
A method of producing a rare earth oxysulfide scintillating ceramic body includes heat treatment to form a consolidated body, followed by gas hot isostatic pressing (GHIPing). A powder is first provided having the general formula (MLn)OS, wherein M is a rare earth element, and Ln is at least one element selected from the group consisting of Eu, Ce, Pr, Tb, Yb, Dy, Sm, and Ho, and 1×10<X<2×10. The powder is heat treated to form a consolidated body having closed porosity, wherein heat treating is carried out at a temperature T. The consolidated body is GHIPed to a density not less than 99% of theoretical density, in a GHIPing environment having a temperature T, where 1100° C.<T<1500° C., to thereby form a densified body.