| Superelastic and Shape Memory Single Crystal CuAlNi: Fabrication and Applications | ||
| Dr. Valery Martynov1, Michael D. Bokaie1, Dr. A.David Johnson2 and Mr. George Robert Gray2, 1TiNi Aerospace, 2235 Polvorosa Avenue, San Leandro, CA 94577, 2TiNi Alloy Company, 13003 Neptune Drive, San Leandro, CA 94577
A crystal grower for pulling from a melt of Cu-Al-Ni alloys different single crystalline profiles was designed and built in TiNi Aerospace Company. The grower utilizes Stepanov’s method and enables pulling various profiles (including hollow ones) of oriented single crystals up to 20 inches long. By varying the alloy formulation transformation temperatures of the crystals can be adjusted in the temperature range from –196 to + 200 oC. | ||