The Explosive Long Pulse Duration Loading of Mipolex Diamond Powder
Abstract
The experiments were done on the explosive compacting of 9 μm and 30 μm Mipolex Diamond Powder using large-scale shots up to 760 kg of HE. These experiments were classified as Momma-Hippo and Papa-Hippo shots in reference to explosive charge mass. We used two and three-layered cylindrical charges for the loading of cylindrical steel containers into which copper ampules with powder were placed. This technique permitted to affect the container wall with the loading pulse as long as more then 400 μsec with maximal pressure of ≈ 10 GPa. With the help of Explosive Long-Pulsed-Duration Loading (ELPDL) the cylindrical compacts were done with diameter 4+8 mm and length 10+18 mm. Though all samples have macrocracks they are rather strong and scratch glass and other hard materials. The results show that ELPDL-method permits to get rather good compacts in spite of relatively small maximal pressure (in comparison with diamond strength). Thus elongation of pulse duration plays the very positive role in consolidation process. In ELPDL experiments no transition of diamond to graphite carbon was find.
- Publication:
-
APS Shock Compression of Condensed Matter Meeting Abstracts
- Pub Date:
- July 1997
- Bibcode:
- 1997APS..SHK..L119D