#
# top.uni.aps.anl.gov:/home/www/beamtime-requests/req00221.txt
# UNICAT Member Beam Time Request  #221

# created Fri Nov 30 17:08:01 CST 2001
#
beamline:
	33ID

collaboration:
	Yes

collaborator+Pete:
	on

contact:
	andrew.allen@nist.gov

days:
	3

description:
	Agglomeration effects in nanoparticulate powders and suspensions play havoc with attempts to process fully-dense  advanced ceramic components etc. This experiment is an anticipated follow-up to a forthcoming preliminary experiment (starting 12/14/01) that will explore agglomeration and dispersion effects in a range of systems as a function of pH. The proposed follow-up experiment will provide a focussed study of the more promising systems and conditions identified, and also include a more systematic study of the effects of temperature on  suspensions. One ultimate goal for a well-dispersed system is to provide a calibration for the extension of laser particle size characterzation to ever smaller mean particle size.

equipment+required:
	USAXS with  x-ray energy of ~ 10 keV.
	
	NOTE: Experiment requires use of USAXS liquid sample cells.

experiment:
	Optimization of Dispersion in Nanoparticulate Suspensions

foreign+nationals:
	Andrew Allen (UK), Jan Ilavsky (Czech Rep.), Ajit Jilla (India)
	
	All previous users at time of experiment.

hazards:
	Suspensions involve alkaline and acidic solutions. Precautions will be followed including use of fume hood, disposable gloves, neutralization of waste etc.

minimumdays:
	2

name:
	Andrew Allen

nonmembers:
	Andrew Allen (NIST), Jan Ilavsky (NIST), Ajit Jilla (NIST)
	
	All previous users at time of experiment.

unacceptable+dates:
	February 17 - March 13 (Jan unavailable).
	April 12 -16.


#REMOTE_HOST: porcelain.nist.gov
#REMOTE_ADDR: 129.6.180.24
#CONTENT_LENGTH: 1611
#HTTP_REFERER: http://www.uni.aps.anl.gov/unireq.htm
#HTTP_USER_AGENT: Mozilla/4.0 (compatible; MSIE 5.0; Mac_PowerPC)