#
# arev:/usr/local/unicat/unireq/beamreq/req00085.txt
# UNICAT Member Beam Time Request  #85

# created Fri Oct 01 12:29:25 CDT 1999
#

collaboration:
	Yes

collaborator+Pete:
	on

days:
	9

description:
	This request is divided into two parts: the first is a series of USAXS
	measurements (over a total of 3 - 4 days) on different classes of 
	materials, the second is a single (4 - 5 day) experiment to observe 
	USAXS of single-crystal Al as a function of deformation. The reason for
	doing these experiments back-to-back is that the best performance of 
	the instrument is expected after it has been running for 
	several days, and the in-situ Al experiment is very demanding. 
	
	The classes of materials to be measured include: silica in suspensions
	(V. Tohver, UIUC), temperature dependence of classes of polymers (J.
	Ilavsky, NIST), precipitates in steels (P. Jemian, UIUC, NIST), nano-
	zirconia suspensions (A. Allen, NIST), MgAl2O4 spinels (A. Allen, NIST)
	and reinforcing silicas synthesized by different protocols (D. Schaefer, 
	U. Cin.).
	
	

equipment+required:
	No additional

experiment:
	USAXS for materials characterization

hazards:
	The only hazard is the pH of the solution in which the silicas and nano-
	zirconias are suspended. Generally, there are around 5 - 7, but 
	occasionally it is necessary to use low pH.  These will be handled 
	appropriately, and will be removed from the Sector when the experiments
	are over.
	

name:
	Gabrielle Long

new+request:
	on

nonmembers:
	Dale Schaefer and ChunYan Chen, U. of Cincinnati
	Valeria Tohver, UIUC
	

station:
	33ID-D

unacceptable+dates:
	Nov. 25 - Dec. 3 (Thanksgiving + MRS Fall Meeting in Boston)
	
	We would appreciate a chance to work early in November, if 
	possible, to make use of the SAXS still set up from September.



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