# # arev:/usr/local/unicat/unireq/beamreq/req00120.txt # UNICAT Member Beam Time Request #120 # created Tue Jun 27 21:04:48 CDT 2000 # collaboration: Yes collaborator+Pete: on days: description: We have found through rheology and sedimentation that small additions of nanosized zirconia to initially unstable silica particles results in a gel-fluid phase transition. Up until now we have had to rely on modeling calculations and zeta potential measurements to probe the interactions between the heterogeneous particles. We hope to extend characterization to more rigorous structural studies of the binary mixtures using USAXS analysis. equipment+required: experiment: Depletion Effects in Binary Mixtures foreign+nationals: hazards: Suspension are highly acidic (pH 1.5) from nitric acid buffer additions. (Note: Suspensions are prepared and disposed of at the University of Illinois) name: Valeria Tohver nonmembers: station: 33ID-D unacceptable+dates: none at this time #QUERY_STRING: #REMOTE_HOST: mach-pc72.mse.uiuc.edu #REMOTE_ADDR: 128.174.229.72 #CONTENT_LENGTH: 842 #HTTP_REFERER: http://www.uni.aps.anl.gov/unireq.htm #HTTP_USER_AGENT: Mozilla/4.0 (compatible; MSIE 5.01; Windows 95)