####################################################
# Eliot Specht <spechted@ornl.gov>
# requesting 5 days, at minimum=3 days
# beamline 33BM, Huang scattering from NiAl superalloy
# instrument 33BM-C fourc
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# top:/home/www/beamtime-requests/req00952.txt
# UNICAT Member Beam Time Request  #952
# created Tue Apr 18 07:57:29 CDT 2006
####################################################

apsrun:
	2006-02

beamline:
	33BM

collaboration:
	No

contact:
	spechted@ornl.gov

days:
	5

description:
	Ni based superalloys contain coherent precipitates of the nano size gamma' -phase particles. Strain fields caused by these particles in the matrix are responsible for the strengthening of the alloy. The goal of this study is to measure the diffuse (Huang) scattering on strain fields in the matrix due to nano size gamma' –phase and to determine it’s parameters. We plan to measure diffuse scattering contour maps around the (010), (011) and (111) type reflections, We also plan to analyze diffuse scattering around the superstructure reflections of the precipitates. Samples will be cooled in a Displex cryostat to reduce thermal scattering. An energy-dispersive detector will be used to separate Compton scattering.

equipment_required:
	displex cryostat
vortex detector

experiment:
	Huang scattering from NiAl superalloy

foreign_nationals:
	Rozaliya Barabash

hazards:
	No hazardous materials; no user-supplied equipment.

instrument:
	33BM-C fourc

instrument_other:
	

minimumdays:
	3

name:
	Eliot Specht

new_request:
	ON

nonmembers:
	

submit:
	Submit

unacceptable_dates:
	May 30 - June 12
July 15-23
July 30-August 2

z34ID_details:
	


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