US 11,925,984 B2
Sintered molybdenum part
Karl Huber, Reutte (AT); Michael O'Sullivan, Reutte (AT); Michael Eidenberger-Schober, Reutte (AT); and Robert Storf, Reutte (AT)
Assigned to Plansee SE, Reutte (AT)
Appl. No. 16/649,489
Filed by PLANSEE SE, Reutte (AT)
PCT Filed Sep. 7, 2018, PCT No. PCT/AT2018/000071
§ 371(c)(1), (2) Date Feb. 11, 2022,
PCT Pub. No. WO2019/060932, PCT Pub. Date Apr. 4, 2019.
Claims priority of application No. GM2172017 (AT), filed on Sep. 29, 2017.
Prior Publication US 2020/0306832 A1, Oct. 1, 2020
Int. Cl. B22F 3/10 (2006.01); B22F 3/12 (2006.01); C22C 27/04 (2006.01)
CPC B22F 3/10 (2013.01) [C22C 27/04 (2013.01); B22F 3/12 (2013.01); B22F 2207/01 (2013.01); B22F 2302/45 (2013.01); B22F 2998/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A powder-metallurgical sintered molybdenum part being present as a solid body, the sintered molybdenum part comprising the following composition:
a. a molybdenum content of ≥99.93% by weight;
b. a boron content “B” in a range of 5≤“B”≤45 ppmw and a carbon content “C” in a range of 5≤“C”≤30 ppmw, with a total content “BaC” of carbon and boron being in a range of 15 ppmw≤“BaC”≤50 ppmw;
c. an oxygen content “O” in a range of 3 ppmw≤“O”≤20 ppmw,
d. a maximum tungsten content of ≤330 ppmw;
e. a maximum proportion of other impurities of ≤300 ppmw; and
f. a maximum proportion of additives of Zr, Hf, Ti, V and Al of ≤50 ppmw.