C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/103
C09K 3/00 (2006.01) G21F 1/06 (2006.01)
Patent
CA 1097906
ABSTRACT OF THE DISCLOSURE The subject of the invention is thin large-area neutron- absorber plates having a volume composition of from 40 to 60% and preferably from 45 to 60% by volume of boron carbide, from 25 to 5% by volume and preferably 15 to 5% by volume of free carbon, the remainder being pores, a density of from 1.4 to 1.8 g/cm3, a flexural strength at room temperature of from 15 to 45 N/mm2, a compressive strength at room temperature of from 25 to 60 N/mm2, a modulus of elasticity at room temperature of from 10,000 to 20,000 N/mm2, and a resistance to ionizing radiation of at least 1011 rad, which plates may be produced by mixing boron carbide powder, containing at least 75% by weight of boron and a proportion of boron oxide of less than 0.5% by weight, and having a particle size distribution of at least 95% finer than 50 µm and, optionally, graphite powder with a pulverulent organic resin binder and a wetting agent, shaping the mixture under pressure at room tempera- ture, curing the resin binder at temperatures of up to 180°C, and then coking the shaped plates with the exclusion of air at temperatures of up to approximately 1000°C with a controlled temperature increase. -14-
316397
Lipp Alfred
Reinmuth Klaus
von Struensee Detlef
Elektroschmelzwerk Kempten G.m.b.h.
Malcolm Johnston & Associates
LandOfFree
Neutron-absorber plates based on boron carbide and carbon... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Neutron-absorber plates based on boron carbide and carbon..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutron-absorber plates based on boron carbide and carbon... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1009651