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Passivation of pigment particles for thermal control coatings (Document No: 19730024724)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Morrison, S. R. Farley, E. P. Sancier, K. M. |
| Copyright Year | 1973 |
| Description | Five powders were received for plasma calcining during this report period. The particle size using a fluid energy mill, and obtained pigments that could be plasma calcined. Optimum results are obtained in the plasma calcining of zinc orthotitanate when finely dispersed particles are subjected to a calculated plasma temperature of 1670 C. Increasing the plasma calcining time by using multiple passes through the plasma stabilized the pigment to vacuum UV irradiation was evidenced by the resulting ESR spectra but slightly decreased the whiteness of the pigment. The observed darkening is apparently associated with the formation of Ti(+3) color centers. |
| File Size | 1367262 |
| Page Count | 57 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730024724 |
| Archival Resource Key | ark:/13960/t41s1k715 |
| Language | English |
| Publisher Date | 1973-06-01 |
| Access Restriction | Open |
| Subject Keyword | Materials, Nonmetallic Thermal Plasmas Pigments Zinc Compounds Thermal Control Coatings Radiation Damage Optimization Ntrs Nasa Technical Reports ServerĀ (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |