141 research outputs found
Joule heating effects on quartz particle melting in high-temperature silicate melt
This work is mostly focused on the melting process model simulation of quartz particles having the radius within the range of 10{-6}-10{-3} m. The melting process is simulated accounting for the heat generation at an electric current passage through a quartz particle
Nanodisperse silica and some aspects of nanotechnologies in the field of silicate materials science. Part 1
Aluminum as a source of background in low background experiments
Neutrinoless double beta decay would be a key to understanding the nature of
neutrino masses. The next generation of High Purity Germanium experiments will
have to be operated with a background rate of better than 10^-5 counts/(kg y
keV) in the region of interest around the Q value of the decay. Therefore, so
far irrelevant sources of background have to be considered. The metalization of
the surface of germanium detectors is in general done with aluminum. The
background from the decays of 22Na, 26Al, 226Ra and 228Th introduced by this
metalization is discussed. It is shown that only a special selection of
aluminum can keep these background contributions acceptable.Comment: 11 pages, 3 Tables, 11 Figures, accepted for publication in NIM
Cement-Free Refractory Concretes. Part 3. Very Fine Forms of Silica as Effective Refractory Concrete Components
Highly concentrated ceramic bonding suspensions and the influence of the concentration factor
Cast oxide refractories of a grainy structure. Initial compositions and the principles of molding
- …