| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312869 |
| ISSN: | 1516-1439 |
| Autores: | Sandim, Hugo Ricardo Zschommler1 Morante, Bruno Vieira Suzuki, Paulo Atsushi |
| Instituciones: | 1Faculdade de Engenharia Quimica de Lorena, Departamento de Engenharia de Materiais, Lorena, Sao Paulo. Brasil |
| Año: | 2005 |
| Periodo: | Jul-Sep |
| Volumen: | 8 |
| Número: | 3 |
| Paginación: | 293-297 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | The thermal decomposition of titanium hydride powder (d-phase) to titanium (a-phase) was investigated by means of thermogravimetric analysis (TGA) and high-temperature X-ray diffraction (HTXRD) in high vacuum. The d-to-a phase transformation was followed in situ by HTXRD at temperatures varying from room temperature up to 1000 °C. The transformation was also analyzed as a function of time at isothermal conditions from 450 to 650 °C. The results of TGA show that the decomposition of the titanium hydride becomes significant at about 450 °C. Above 500 °C the decomposition is completed in times shorter than 50 minutes. The apparent activation energy for hydrogen desorption was found to be 63 ± 6 kJ.mol-1 |
| Disciplinas: | Ingeniería, Química, Física y astronomía |
| Palabras clave: | Ingeniería química, Química industrial, Teoría cinética y plasmas, Hidruros, Titanio, Descomposición térmica, Temperatura, Desorción |
| Keyword: | Engineering, Chemistry, Physics and astronomy, Chemical engineering, Industrial chemistry, Kinetic theory and plasma, Hydrates, Titanium, Thermal decomposition, Temperature, Desorption |
| Texto completo: | Texto completo (Ver HTML) |
