Carbothermal reaction of mechanically activated ZrC powders followed by DSC-TGA
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Mixtures of ZrO2 and C were prepared by high-energy ball milling. Powders were milled for times from 0 to 120 minutes in air atmosphere. As milling time increased, surface area of powders increased, indicating significant particle size reduction. The thermal treatment cycle included heating at 10 °C/min to 1600 °C followed by an isothermal hold for 2 hours under the vacuum (~20 Pa) in a resistance-heated graphite element furnace. This first step of the process promoted carbothermal reaction of the starting materials.
DSC-TGA was used to follow the carbothermal reaction. The onset temperature does not seem to change for non-activated and activated powders. The change in peak area may be related to the amount of the powder that reacts at this temperature. The catbothermal reaction was split into two parts for powders activated 60 and 120 minutes. Only part of the powder reacts at the initial
reaction, and then higher temperatures are required for full reaction.
Кључне речи:
ZrC / ball milling / powders / thermal treatment / carbothermal reactionИзвор:
Book of abstracts of the 7th Central and Eastern European Conference on Thermal Analysis and Calorimetry (CEEC-TAC7), 2023, 137-137Издавач:
- Brno : Central and Eastern European Committee for Thermal Analysis and Calorimetry (CEEC-TAC)
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Obradović, Nina AU - Filipović, Suzana AU - Bohannan, Eric W. AU - Fahrenholtz, William G. PY - 2023 UR - https://dais.sanu.ac.rs/123456789/16212 AB - Mixtures of ZrO2 and C were prepared by high-energy ball milling. Powders were milled for times from 0 to 120 minutes in air atmosphere. As milling time increased, surface area of powders increased, indicating significant particle size reduction. The thermal treatment cycle included heating at 10 °C/min to 1600 °C followed by an isothermal hold for 2 hours under the vacuum (~20 Pa) in a resistance-heated graphite element furnace. This first step of the process promoted carbothermal reaction of the starting materials. DSC-TGA was used to follow the carbothermal reaction. The onset temperature does not seem to change for non-activated and activated powders. The change in peak area may be related to the amount of the powder that reacts at this temperature. The catbothermal reaction was split into two parts for powders activated 60 and 120 minutes. Only part of the powder reacts at the initial reaction, and then higher temperatures are required for full reaction. PB - Brno : Central and Eastern European Committee for Thermal Analysis and Calorimetry (CEEC-TAC) C3 - Book of abstracts of the 7th Central and Eastern European Conference on Thermal Analysis and Calorimetry (CEEC-TAC7) T1 - Carbothermal reaction of mechanically activated ZrC powders followed by DSC-TGA SP - 137 EP - 137 UR - https://hdl.handle.net/21.15107/rcub_dais_16212 ER -
@conference{ author = "Obradović, Nina and Filipović, Suzana and Bohannan, Eric W. and Fahrenholtz, William G.", year = "2023", abstract = "Mixtures of ZrO2 and C were prepared by high-energy ball milling. Powders were milled for times from 0 to 120 minutes in air atmosphere. As milling time increased, surface area of powders increased, indicating significant particle size reduction. The thermal treatment cycle included heating at 10 °C/min to 1600 °C followed by an isothermal hold for 2 hours under the vacuum (~20 Pa) in a resistance-heated graphite element furnace. This first step of the process promoted carbothermal reaction of the starting materials. DSC-TGA was used to follow the carbothermal reaction. The onset temperature does not seem to change for non-activated and activated powders. The change in peak area may be related to the amount of the powder that reacts at this temperature. The catbothermal reaction was split into two parts for powders activated 60 and 120 minutes. Only part of the powder reacts at the initial reaction, and then higher temperatures are required for full reaction.", publisher = "Brno : Central and Eastern European Committee for Thermal Analysis and Calorimetry (CEEC-TAC)", journal = "Book of abstracts of the 7th Central and Eastern European Conference on Thermal Analysis and Calorimetry (CEEC-TAC7)", title = "Carbothermal reaction of mechanically activated ZrC powders followed by DSC-TGA", pages = "137-137", url = "https://hdl.handle.net/21.15107/rcub_dais_16212" }
Obradović, N., Filipović, S., Bohannan, E. W.,& Fahrenholtz, W. G.. (2023). Carbothermal reaction of mechanically activated ZrC powders followed by DSC-TGA. in Book of abstracts of the 7th Central and Eastern European Conference on Thermal Analysis and Calorimetry (CEEC-TAC7) Brno : Central and Eastern European Committee for Thermal Analysis and Calorimetry (CEEC-TAC)., 137-137. https://hdl.handle.net/21.15107/rcub_dais_16212
Obradović N, Filipović S, Bohannan EW, Fahrenholtz WG. Carbothermal reaction of mechanically activated ZrC powders followed by DSC-TGA. in Book of abstracts of the 7th Central and Eastern European Conference on Thermal Analysis and Calorimetry (CEEC-TAC7). 2023;:137-137. https://hdl.handle.net/21.15107/rcub_dais_16212 .
Obradović, Nina, Filipović, Suzana, Bohannan, Eric W., Fahrenholtz, William G., "Carbothermal reaction of mechanically activated ZrC powders followed by DSC-TGA" in Book of abstracts of the 7th Central and Eastern European Conference on Thermal Analysis and Calorimetry (CEEC-TAC7) (2023):137-137, https://hdl.handle.net/21.15107/rcub_dais_16212 .