With regards to MgB2...
Is the crystallographic (structural) data for that ceramic published.
I'd appreciate it
if someone could provide me with the bibliographical info at his/her
convenience.
Thanks in advance,
Koray
E. K. Akdogan, Ph. D.
Research Associate
Center for Ceramic Research
Rutgers University
607 Taylor Road
Piscataway, NJ 08854-8065
Phone: (732)-445 5614
Fax : (732)-445 5577
E-mail : [EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brian H. Toby
Sent: Wednesday, March 28, 2001 11:01 AM
To: [EMAIL PROTECTED]
Subject: Neutron diffraction with boron
Armel Le Bail wrote:
> Have new neutron
> powder patterns been done on the magnesium diboride superconductor
> yet (or derivatives, if any), or B absorption will be a too big
> problem ?
Yes, neutron absorption by boron is a potential problem, however use of
11B in place of natural abundance boron eliminates the absorption. This
isotope is available fairly readily. And yes, the measurements have been
done.
People contemplating neutron experiments may want to estimate absorption
using http://www.ncnr.nist.gov/xtal/neutron.html
Brian
News Flash: The unscheduled mantainence for the NIST reactor has been
postponed until our scheduled upgrade in August. We plan to resume
operations in about 2 weeks.
********************************************************************
Brian H. Toby, Ph.D. Leader, Crystallography Team
[EMAIL PROTECTED] NIST Center for Neutron Research, Stop 8562
voice: 301-975-4297 National Institute of Standards & Technology
FAX: 301-921-9847 Gaithersburg, MD 20899-8562
http://www.ncnr.nist.gov/xtal
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