Title:
MOLYBDENUM ALLOY X-RAY TARGETS HAVING UNIFORM GRAIN STRUCTURE
Document Type and Number:
WIPO Patent Application WO2004095501
Kind Code:
A3
Abstract:
The invention relates to a process for making a cross-directionally worked molybdenum plate, the process comprising: (a) reducing ammonium molybdate and forming molybdenum metal powder; (b) consolidating a molybdenum component comprised of molybdenum metal powder and an alloying element to a first workpiece, the alloying element being selected from the group consisting of titanium, zirconium, hafnium, carbon, lanthanum oxide, and combinations thereof; (c) thermally treating the first workpiece and subjecting the workpiece to thermo-mechanical forces in a first direction, and thereby forming a second workpiece; (d) thermally treating the second workpiece and subjecting the second workpiece to thermo-mechanical forces in a second direction that is different from the first direction; (e) subjecting the thermomechanically treated second workpiece to a recrystallization heat treatment step, and thereby forming a heat-treated cross-directionally worked workpiece; and (f) subjecting the heat-treated, cross-directionally worked workpiece to a slicing step or a machining step, and thereby forming the crossÂdirectionally worked molybdenum plate. The invention also relates to X-ray targets made from the process.
Inventors:
DAILY JAMES (US)
LEMON BRAD (US)
HIRT JOSEPH (US)
KUMAR PRABHAT (US)
GILLE GERHARD (DE)
LEMON BRAD (US)
HIRT JOSEPH (US)
KUMAR PRABHAT (US)
GILLE GERHARD (DE)
Application Number:
PCT/US2004/011554
Publication Date:
April 21, 2005
Filing Date:
April 15, 2004
Export Citation:
Assignee:
STARCK H C INC
DAILY JAMES (US)
LEMON BRAD (US)
HIRT JOSEPH (US)
KUMAR PRABHAT (US)
GILLE GERHARD (DE)
DAILY JAMES (US)
LEMON BRAD (US)
HIRT JOSEPH (US)
KUMAR PRABHAT (US)
GILLE GERHARD (DE)
International Classes:
B21C23/01; B21J5/00; B22F3/16; C22B34/34; C22C1/02; C22C32/00; C22F1/18; (IPC1-7): H01J35/08; B22F3/16
Domestic Patent References:
| WO2002070765A1 | 2002-09-12 | |||
| WO2004022801A1 | 2004-03-18 |
Foreign References:
| US4077811A | 1978-03-07 | |||
| US5868876A | 1999-02-09 | |||
| GB938546A | 1963-10-02 | |||
| US20010001401A1 | 2001-05-24 | |||
| US20030052000A1 | 2003-03-20 | |||
| US20010036249A1 | 2001-11-01 | |||
| EP0055828A2 | 1982-07-14 | |||
| US20010014568A1 | 2001-08-16 | |||
| US6707883B1 | 2004-03-16 |
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