| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Composition Control and Analysis of Sub-stoichiometric Titanium Hydride Powders |
| Author(s) |
Daniel C. Bufford, Hua Wang, Stewart Youngblood |
| On-Site Speaker (Planned) |
Stewart Youngblood |
| Abstract Scope |
Hydrogen in structural titanium alloys leads to unwanted embrittlement, however, embrittling effects are beneficial during processing as they allow crushing of bulk titanium sponge into powder. It is thus of great importance to understand and control hydrogen absorption and desorption. Titanium hydrides with formula TiH<sub>x</sub> exist over a range of compositions with 0 < x ≤ 2. Despite frequently traversing the full composition range during hydride/dehydride processing of titanium sponge into powder, compositions in the intermediate range are less often produced intentionally and thus have seen less investigation. Here we create sub-stoichiometric titanium hydride powders with tightly controlled compositions in the range of 1.5 < x ≤ 2, and discuss efforts to develop hydrogen quantification methods to validate these composition targets. Also discussed are effects of processing on particle size, surface area, and metallurgical impurity content. These efforts demonstrate what precision can be obtained during processing of these powder materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Powder Materials, Extraction and Processing |