The Effect of the Heating Rate during Carbonization on the Porosity, Strength, and Electrical Resistivity of Graphite Blocks Using Phenolic Resin as a Binder
In the present study, graphite blocks were fabricated using synthetic graphite scrap and phenolic resin, and the effect of the heating rate during carbonization on their mechanical and electrical characteristics was examined. While varying the heating rate from 1, 3, 5, and 7 to 9 °C/min, the micros...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-05-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/15/9/3259 |
| _version_ | 1797504012234260480 |
|---|---|
| author | Sang-Hye Lee Jae-Hyun Kim Woo-Seok Kim Jae-Seung Roh |
| author_facet | Sang-Hye Lee Jae-Hyun Kim Woo-Seok Kim Jae-Seung Roh |
| author_sort | Sang-Hye Lee |
| collection | DOAJ |
| description | In the present study, graphite blocks were fabricated using synthetic graphite scrap and phenolic resin, and the effect of the heating rate during carbonization on their mechanical and electrical characteristics was examined. While varying the heating rate from 1, 3, 5, and 7 to 9 °C/min, the microstructure, density, porosity, flexural strength, compressive strength, and electrical resistivity of the fabricated graphite blocks were measured. As the heating rate increased, the pores in the graphite blocks increased in size, and the shape of the gas release paths became more irregular. Overall, it was found that increases in the heating rate led to the degradation of the graphite blocks’ mechanical and electrical properties. |
| first_indexed | 2024-03-10T03:58:33Z |
| format | Article |
| id | doaj.art-78117e1aa658401a8f95793f670bb1ef |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:58:33Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-78117e1aa658401a8f95793f670bb1ef2023-11-23T08:40:38ZengMDPI AGMaterials1996-19442022-05-01159325910.3390/ma15093259The Effect of the Heating Rate during Carbonization on the Porosity, Strength, and Electrical Resistivity of Graphite Blocks Using Phenolic Resin as a BinderSang-Hye Lee0Jae-Hyun Kim1Woo-Seok Kim2Jae-Seung Roh3School of Materials Science and Engineering, Kumoh National Institute of Technology, Gumi 39177, KoreaCarbolab Co., Ltd., Gumi 39425, KoreaCarbolab Co., Ltd., Gumi 39425, KoreaSchool of Materials Science and Engineering, Kumoh National Institute of Technology, Gumi 39177, KoreaIn the present study, graphite blocks were fabricated using synthetic graphite scrap and phenolic resin, and the effect of the heating rate during carbonization on their mechanical and electrical characteristics was examined. While varying the heating rate from 1, 3, 5, and 7 to 9 °C/min, the microstructure, density, porosity, flexural strength, compressive strength, and electrical resistivity of the fabricated graphite blocks were measured. As the heating rate increased, the pores in the graphite blocks increased in size, and the shape of the gas release paths became more irregular. Overall, it was found that increases in the heating rate led to the degradation of the graphite blocks’ mechanical and electrical properties.https://www.mdpi.com/1996-1944/15/9/3259graphite blockphenolic resincarbonizationporosityheating ratemicrostructure |
| spellingShingle | Sang-Hye Lee Jae-Hyun Kim Woo-Seok Kim Jae-Seung Roh The Effect of the Heating Rate during Carbonization on the Porosity, Strength, and Electrical Resistivity of Graphite Blocks Using Phenolic Resin as a Binder Materials graphite block phenolic resin carbonization porosity heating rate microstructure |
| title | The Effect of the Heating Rate during Carbonization on the Porosity, Strength, and Electrical Resistivity of Graphite Blocks Using Phenolic Resin as a Binder |
| title_full | The Effect of the Heating Rate during Carbonization on the Porosity, Strength, and Electrical Resistivity of Graphite Blocks Using Phenolic Resin as a Binder |
| title_fullStr | The Effect of the Heating Rate during Carbonization on the Porosity, Strength, and Electrical Resistivity of Graphite Blocks Using Phenolic Resin as a Binder |
| title_full_unstemmed | The Effect of the Heating Rate during Carbonization on the Porosity, Strength, and Electrical Resistivity of Graphite Blocks Using Phenolic Resin as a Binder |
| title_short | The Effect of the Heating Rate during Carbonization on the Porosity, Strength, and Electrical Resistivity of Graphite Blocks Using Phenolic Resin as a Binder |
| title_sort | effect of the heating rate during carbonization on the porosity strength and electrical resistivity of graphite blocks using phenolic resin as a binder |
| topic | graphite block phenolic resin carbonization porosity heating rate microstructure |
| url | https://www.mdpi.com/1996-1944/15/9/3259 |
| work_keys_str_mv | AT sanghyelee theeffectoftheheatingrateduringcarbonizationontheporositystrengthandelectricalresistivityofgraphiteblocksusingphenolicresinasabinder AT jaehyunkim theeffectoftheheatingrateduringcarbonizationontheporositystrengthandelectricalresistivityofgraphiteblocksusingphenolicresinasabinder AT wooseokkim theeffectoftheheatingrateduringcarbonizationontheporositystrengthandelectricalresistivityofgraphiteblocksusingphenolicresinasabinder AT jaeseungroh theeffectoftheheatingrateduringcarbonizationontheporositystrengthandelectricalresistivityofgraphiteblocksusingphenolicresinasabinder AT sanghyelee effectoftheheatingrateduringcarbonizationontheporositystrengthandelectricalresistivityofgraphiteblocksusingphenolicresinasabinder AT jaehyunkim effectoftheheatingrateduringcarbonizationontheporositystrengthandelectricalresistivityofgraphiteblocksusingphenolicresinasabinder AT wooseokkim effectoftheheatingrateduringcarbonizationontheporositystrengthandelectricalresistivityofgraphiteblocksusingphenolicresinasabinder AT jaeseungroh effectoftheheatingrateduringcarbonizationontheporositystrengthandelectricalresistivityofgraphiteblocksusingphenolicresinasabinder |