Atomistic Evidence of Nucleation Mechanism for the Direct Graphite-to-Diamond Transformation
The direct graphite-to-diamond transformation mechanism has been a subject of intense study and remains debated concerning the initial stages of the conversion, the intermediate phases, and their transformation pathways. Here, we successfully recover samples at early conversion stage by tuning high-...
Gespeichert in:
| Veröffentlicht in: | arXiv.org 2021-11 |
|---|---|
| Hauptverfasser: | , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | arXiv.org |
| container_volume | |
| creator | Luo, Duan Yang, Liuxiang Xie, Hongxian Srinivasan, Srilok Tian, Jinshou Subramanian Sankaranarayanan Arslan, Ilke Yang, Wenge Ho-kwang Mao Wen, Jianguo |
| description | The direct graphite-to-diamond transformation mechanism has been a subject of intense study and remains debated concerning the initial stages of the conversion, the intermediate phases, and their transformation pathways. Here, we successfully recover samples at early conversion stage by tuning high-pressure/high-temperature conditions and reveal direct evidence supporting the nucleation-growth mechanism. Atomistic observations show that intermediate orthorhombic graphite phase mediates the growth of diamond nuclei. Furthermore, we observe that quenchable orthorhombic and rhombohedra graphite are stabilized in buckled graphite at lower temperatures. These intermediate phases are further converted into hexagonal and cubic diamond at higher temperatures following energetically favorable pathways in the order: graphite -> orthorhombic graphite -> hexagonal diamond, graphite -> orthorhombic graphite -> cubic diamond, graphite -> rhombohedra graphite -> cubic diamond. These results significantly improve our understanding of the transformation mechanism, enabling the synthesis of different high-quality forms of diamond from graphite. |
| format | Article |
| fullrecord | <record><control><sourceid>proquest</sourceid><recordid>TN_cdi_proquest_journals_2604249683</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2604249683</sourcerecordid><originalsourceid>FETCH-proquest_journals_26042496833</originalsourceid><addsrcrecordid>eNqNi0ELgjAYQEcQJOV_-KDzwDY1O0ZaXerUMZAxP3HiNttmvz-JfkCnd3jvLUjEON_RImVsRWLv-yRJWL5nWcYj8jwGq5UPSkL1Vg0aiWBbuE9yQBGUNXBD2QmjvIbWOggdQqkcygAXJ8ZOBaTB0lIJbU0DDyeMnzv9fTdk2YrBY_zjmmzP1eN0paOzrwl9qHs7OTOrmuVJytJDXnD-X_UBxH9DjA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2604249683</pqid></control><display><type>article</type><title>Atomistic Evidence of Nucleation Mechanism for the Direct Graphite-to-Diamond Transformation</title><source>Free E- Journals</source><creator>Luo, Duan ; Yang, Liuxiang ; Xie, Hongxian ; Srinivasan, Srilok ; Tian, Jinshou ; Subramanian Sankaranarayanan ; Arslan, Ilke ; Yang, Wenge ; Ho-kwang Mao ; Wen, Jianguo</creator><creatorcontrib>Luo, Duan ; Yang, Liuxiang ; Xie, Hongxian ; Srinivasan, Srilok ; Tian, Jinshou ; Subramanian Sankaranarayanan ; Arslan, Ilke ; Yang, Wenge ; Ho-kwang Mao ; Wen, Jianguo</creatorcontrib><description>The direct graphite-to-diamond transformation mechanism has been a subject of intense study and remains debated concerning the initial stages of the conversion, the intermediate phases, and their transformation pathways. Here, we successfully recover samples at early conversion stage by tuning high-pressure/high-temperature conditions and reveal direct evidence supporting the nucleation-growth mechanism. Atomistic observations show that intermediate orthorhombic graphite phase mediates the growth of diamond nuclei. Furthermore, we observe that quenchable orthorhombic and rhombohedra graphite are stabilized in buckled graphite at lower temperatures. These intermediate phases are further converted into hexagonal and cubic diamond at higher temperatures following energetically favorable pathways in the order: graphite -> orthorhombic graphite -> hexagonal diamond, graphite -> orthorhombic graphite -> cubic diamond, graphite -> rhombohedra graphite -> cubic diamond. These results significantly improve our understanding of the transformation mechanism, enabling the synthesis of different high-quality forms of diamond from graphite.</description><identifier>EISSN: 2331-8422</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Conversion ; Diamonds ; Graphite ; High temperature ; Nucleation ; Transformations</subject><ispartof>arXiv.org, 2021-11</ispartof><rights>2021. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>776,780</link.rule.ids></links><search><creatorcontrib>Luo, Duan</creatorcontrib><creatorcontrib>Yang, Liuxiang</creatorcontrib><creatorcontrib>Xie, Hongxian</creatorcontrib><creatorcontrib>Srinivasan, Srilok</creatorcontrib><creatorcontrib>Tian, Jinshou</creatorcontrib><creatorcontrib>Subramanian Sankaranarayanan</creatorcontrib><creatorcontrib>Arslan, Ilke</creatorcontrib><creatorcontrib>Yang, Wenge</creatorcontrib><creatorcontrib>Ho-kwang Mao</creatorcontrib><creatorcontrib>Wen, Jianguo</creatorcontrib><title>Atomistic Evidence of Nucleation Mechanism for the Direct Graphite-to-Diamond Transformation</title><title>arXiv.org</title><description>The direct graphite-to-diamond transformation mechanism has been a subject of intense study and remains debated concerning the initial stages of the conversion, the intermediate phases, and their transformation pathways. Here, we successfully recover samples at early conversion stage by tuning high-pressure/high-temperature conditions and reveal direct evidence supporting the nucleation-growth mechanism. Atomistic observations show that intermediate orthorhombic graphite phase mediates the growth of diamond nuclei. Furthermore, we observe that quenchable orthorhombic and rhombohedra graphite are stabilized in buckled graphite at lower temperatures. These intermediate phases are further converted into hexagonal and cubic diamond at higher temperatures following energetically favorable pathways in the order: graphite -> orthorhombic graphite -> hexagonal diamond, graphite -> orthorhombic graphite -> cubic diamond, graphite -> rhombohedra graphite -> cubic diamond. These results significantly improve our understanding of the transformation mechanism, enabling the synthesis of different high-quality forms of diamond from graphite.</description><subject>Conversion</subject><subject>Diamonds</subject><subject>Graphite</subject><subject>High temperature</subject><subject>Nucleation</subject><subject>Transformations</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNqNi0ELgjAYQEcQJOV_-KDzwDY1O0ZaXerUMZAxP3HiNttmvz-JfkCnd3jvLUjEON_RImVsRWLv-yRJWL5nWcYj8jwGq5UPSkL1Vg0aiWBbuE9yQBGUNXBD2QmjvIbWOggdQqkcygAXJ8ZOBaTB0lIJbU0DDyeMnzv9fTdk2YrBY_zjmmzP1eN0paOzrwl9qHs7OTOrmuVJytJDXnD-X_UBxH9DjA</recordid><startdate>20211126</startdate><enddate>20211126</enddate><creator>Luo, Duan</creator><creator>Yang, Liuxiang</creator><creator>Xie, Hongxian</creator><creator>Srinivasan, Srilok</creator><creator>Tian, Jinshou</creator><creator>Subramanian Sankaranarayanan</creator><creator>Arslan, Ilke</creator><creator>Yang, Wenge</creator><creator>Ho-kwang Mao</creator><creator>Wen, Jianguo</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope></search><sort><creationdate>20211126</creationdate><title>Atomistic Evidence of Nucleation Mechanism for the Direct Graphite-to-Diamond Transformation</title><author>Luo, Duan ; Yang, Liuxiang ; Xie, Hongxian ; Srinivasan, Srilok ; Tian, Jinshou ; Subramanian Sankaranarayanan ; Arslan, Ilke ; Yang, Wenge ; Ho-kwang Mao ; Wen, Jianguo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_26042496833</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Conversion</topic><topic>Diamonds</topic><topic>Graphite</topic><topic>High temperature</topic><topic>Nucleation</topic><topic>Transformations</topic><toplevel>online_resources</toplevel><creatorcontrib>Luo, Duan</creatorcontrib><creatorcontrib>Yang, Liuxiang</creatorcontrib><creatorcontrib>Xie, Hongxian</creatorcontrib><creatorcontrib>Srinivasan, Srilok</creatorcontrib><creatorcontrib>Tian, Jinshou</creatorcontrib><creatorcontrib>Subramanian Sankaranarayanan</creatorcontrib><creatorcontrib>Arslan, Ilke</creatorcontrib><creatorcontrib>Yang, Wenge</creatorcontrib><creatorcontrib>Ho-kwang Mao</creatorcontrib><creatorcontrib>Wen, Jianguo</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Luo, Duan</au><au>Yang, Liuxiang</au><au>Xie, Hongxian</au><au>Srinivasan, Srilok</au><au>Tian, Jinshou</au><au>Subramanian Sankaranarayanan</au><au>Arslan, Ilke</au><au>Yang, Wenge</au><au>Ho-kwang Mao</au><au>Wen, Jianguo</au><format>book</format><genre>document</genre><ristype>GEN</ristype><atitle>Atomistic Evidence of Nucleation Mechanism for the Direct Graphite-to-Diamond Transformation</atitle><jtitle>arXiv.org</jtitle><date>2021-11-26</date><risdate>2021</risdate><eissn>2331-8422</eissn><abstract>The direct graphite-to-diamond transformation mechanism has been a subject of intense study and remains debated concerning the initial stages of the conversion, the intermediate phases, and their transformation pathways. Here, we successfully recover samples at early conversion stage by tuning high-pressure/high-temperature conditions and reveal direct evidence supporting the nucleation-growth mechanism. Atomistic observations show that intermediate orthorhombic graphite phase mediates the growth of diamond nuclei. Furthermore, we observe that quenchable orthorhombic and rhombohedra graphite are stabilized in buckled graphite at lower temperatures. These intermediate phases are further converted into hexagonal and cubic diamond at higher temperatures following energetically favorable pathways in the order: graphite -> orthorhombic graphite -> hexagonal diamond, graphite -> orthorhombic graphite -> cubic diamond, graphite -> rhombohedra graphite -> cubic diamond. These results significantly improve our understanding of the transformation mechanism, enabling the synthesis of different high-quality forms of diamond from graphite.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2021-11 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_proquest_journals_2604249683 |
| source | Free E- Journals |
| subjects | Conversion Diamonds Graphite High temperature Nucleation Transformations |
| title | Atomistic Evidence of Nucleation Mechanism for the Direct Graphite-to-Diamond Transformation |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-04T02%3A26%3A28IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=document&rft.atitle=Atomistic%20Evidence%20of%20Nucleation%20Mechanism%20for%20the%20Direct%20Graphite-to-Diamond%20Transformation&rft.jtitle=arXiv.org&rft.au=Luo,%20Duan&rft.date=2021-11-26&rft.eissn=2331-8422&rft_id=info:doi/&rft_dat=%3Cproquest%3E2604249683%3C/proquest%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2604249683&rft_id=info:pmid/&rfr_iscdi=true |