Skip to main content

Anisotropic grain connectivity in shock consolidated MgB2 bulk samples

Buy Article:

$43.90 plus tax (Refund Policy)


We consolidated commercial MgB2 powders by two different shock consolidation methods: the single-stage propellant gun method and the underwater shock consolidation method. The samples prepared had anisotropic resistance–temperature features; the narrowest resistive transition width was observed along the directions of shock loading. In contrast, onset temperatures were independent of the directions and methods. No grain orientation previously observed would have resulted from the consolidation processes with a very short duration of &{\sim } 1~\micmu {\mathrm {s}} ;. The samples showed higher diamagnetism than a cold isostatic pressed (CIPed) sample at a low field of 1¬†Oe. However, their diamagnetism relatively degraded with increasing fields and eventually became much less than even that of the CIPed sample. This is due possibly to thick, much distorted grain boundaries that would have behaved as weak links at high fields.

Document Type: Research Article


Publication date: June 1, 2004


Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more
Real Time Web Analytics