Loading...
Please wait, while we are loading the content...
Similar Documents
Apparatus ad method for quiescent containerless processing of high temperature metals and alloys in low gravity
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1987 |
| Description | The electron bombardment furnace consists of two confinement grid sections which may be moved and separated from each other. Inside the bombardment furnace, a tungsten element is enclosed. The material specimen is located within the tungsten element and grounded by means of grounded support wires connected to the respective sections of the furnace. The material specimen is supported on the ground wires and heated by electron bombardment until melt occurs. The furnace sections are separated in opposite directions causing the ground wires to pull from the surfaces of the specimen, leaving the specimen freely suspended in the process chamber without the action of external forces. The specimen remains in its melt condition in the processing chamber where it can be undercooled without external forces acting on the specimen, which would cause dynamic nucleation. |
| File Size | 567375 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870014511 |
| Archival Resource Key | ark:/13960/t6159gj4s |
| Language | English |
| Publisher Date | 1987-06-30 |
| Access Restriction | Open |
| Subject Keyword | Refractory Materials Confinement Containerless Melts Supports Electron Beams Furnaces Space Commercialization Low Gravity Manufacturing Electron Bombardment Solidification Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
