TY - JOUR
AU - Semchishin, I.
AB - APPARATUS FOR INVESTIGATING HYDROGEN PERMEABILITY OF MATERIALS R. I. Kripyakevich, R. I. Van'kovich, UDC 620.193.29 B. F. Kachmar, V. M. Sidorenko, and I. V. Semchishin Hydrogen permeability of materials is determined by measuring the quantity of hydrogen passing in a unit time through a unit surface area of a specimen under specified experimental conditions, i.e., by mea- suring gas flows at very slow rates and low pressures. Methods used in this application can be divided into two groups: 1) collecting the gas in a vessel of a known volume and measuring its pressure at periodic intervals; 2) continuous measurements of the gas flow with the aid of hydrodynamic affects (deflection of a mechanical screen, pressure drop across a throttle) or other physical factors (velocity of propagation of ultrasonics, time taken by ionized particles to pass through etc.). The method of measuring hydrogen flow should be absolute and sufficiently accurate; it should be suitable for carrying out measurements (continuously or at sufficiently frequent intervals) in a wide range of gas flow rates with simple and reliable equipment. These requirements are better satis- fied by the method which involves the collection of hydrogen. The apparatus currently used for determining hydrogen permeability 
TI - Apparatus for investigating hydrogen permeability of materials
JF - Materials Science
DO - 10.1007/BF00722041
DA - 2004-11-17
UR - https://www.deepdyve.com/lp/springer-journals/apparatus-for-investigating-hydrogen-permeability-of-materials-rEFMVhbyPy
SP - 477
EP - 480
VL - 6
IS - 4
DP - DeepDyve
ER -