EP 0765012 B1 19990707 - NON-VAPORISING GETTER AND METHOD OF OBTAINING THE SAME

Title (en)

NON-VAPORISING GETTER AND METHOD OF OBTAINING THE SAME

Title (de)

NICHTVERDAMPFBARES GETTERMATERIAL UND VERFAHREN ZU SEINER HERSTELLUNG

Title (fr)

DEGAZEUR NON VOLATILE ET SON PROCEDE D'OBTENTION

Publication

EP 0765012 B1 19990707 (EN)

Application

EP 95942805 A 19951221

Priority

RU 9500276 W 19951221
RU 94045576 A 19941229
US 86823297 A 19970603

Abstract (en)

[origin: WO9621958A2] The proposed non-vaporising getter contains the following components: vanadium (V) - 20-35 wt.%; calcium (Ca) - 0.1-0.5 wt.%; and titanium (Ti) - the rest. The getter has a porosity of 25-65 % of its total volume. In order to obtain the getter in question, a method is proposed whereby a metal powder containing vanadium (V), calcium (Ca) and titanium (Ti) in the proportions indicated above is fed into a deformation zone at a bulk density of about 0.7-1.5 g/cm<3>. In the deformation zone, the powder is shaped by rolling, producing a getter blank in the form of a ribbon. The latter is cut into uniform sections which are then fed into a heating zone, where a pressure below 1 pa is established and maintained and the blank sections are heated to a temperature below 0.6 of the fusion temperature of the titanium-vanadium alloy and subsequently allowed to set. A getter is obtained with a porosity of 25-65 % of its total volume.

IPC 1-7

H01J 7/18

IPC 8 full level

B22F 5/00 (2006.01); B22F 3/11 (2006.01); C22C 1/04 (2006.01); C22C 14/00 (2006.01); H01J 7/18 (2006.01); H01S 3/09 (2006.01)

CPC (source: EP)

H01J 7/183 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IE IT LI NL SE

DOCDB simple family (publication)

WO 9621958 A2 19960718; WO 9621958 A3 19960906; CN 1068907 C 20010725; CN 1142250 A 19970205; EP 0765012 A2 19970326; EP 0765012 A4 19970220; EP 0765012 B1 19990707; JP 3231780 B2 20011126; JP H09509986 A 19971007; RU 2073737 C1 19970220; RU 94045576 A 19961027

DOCDB simple family (application)

RU 9500276 W 19951221; CN 95191862 A 19951221; EP 95942805 A 19951221; JP 52158696 A 19951221; RU 94045576 A 19941229