#
# arev:/usr/local/unicat/unireq/beamreq/req00118.txt
# UNICAT Member Beam Time Request  #118

# created Thu Jun 22 11:14:55 CDT 2000
#

collaboration:
	No

collaborator+Pete:
	on

days:
	3

description:
	Carbon coated silica has been produced by the group of Dr. Sotiris 
	Pratsinis at ETH Zurich, Switzerland through a new pyrolitic process.
	Introducing carbon onto the surface of the silica makes the powders 
	more compatible with rubber compounds and easier to disperse compared
	to conventional fumed silica.  Therefore these powders are being
	investigated to see how they improve rubber reinforcement and how the 
	carbon content, particle size, and fractal structure of the powders
	influence reinforcement.
	
	Initial microscopy showed that the particles are highly aggregated 
	and that the surface of the particles is rough.  The goal of this 
	research is to confirm whether or not the surface of these powders are
	rough and to measure the surface fractal dimension.  Additionally,
	the particle diameter, aggregate size, and mass fractal dimension
	can be obtained from these USAXS experiments.  This information can 
	be used to explain the reinforcement mechanisms of the powders on 
	filled elastomer compounds verses conventional fillers.
	

equipment+required:
	USAXS camera

experiment:
	Carbon coated silica for elastomer reinforcement

foreign+nationals:
	George Skillas, Greek National, Post Doc. ETH Zurich, Switzerland 
	George is a current IPNS user

hazards:
	No hazardous materials.

name:
	Doug Kohls, kohlsdj@email.uc.edu

new+request:
	on

nonmembers:
	Mike Satkowski, Procter and Gamble
	Sotiris Pratsinis, ETH Zurich, Switzerland
	Goodyear Tire and Rubber Company

station:
	33ID-D

unacceptable+dates:
	



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