CHARACTERIZATION OF AN ALUMINA MEMBRANE BY NEUTRON-SCATTERING AND OTHER TECHNIQUES

An alumina membrane was studied by three methods: adsorption, adsorpti on in conjunction with small-angle neutron scattering (SANS), and rela tive permeability (P-R). The predictions of the Brunauer-Emmett-Teller and the Kelvin equations were found to be in accordance with the SANS results. Film areas and pore size distributions were calculated. For the alumina membrane, a coordination number of similar to 10 was estim ated from the SANS areas. Analysis on P-R data was performed and a con nectivity number of similar to 8 was computed.