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Comparative catalytic study on the carbothermic formation of hexagonal boron nitride with Li, Na, K and Ca carbonates
Catalytic effects of Li, Na, K and Ca carbonates on carbothermic formation of hexagonal boron nitride (hBN) were investigated. Experiments were conducted by keeping the plain and catalyst added B 2 O 3 + C powder mixtures at 1400 °C in flowing nitrogen for 40–160 min. Products were subjected to qua...
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| Published in: | Journal of materials science 2014, Vol.49 (1), p.371-379 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c426t-3d901c209db84164777432e222c060f7f3923bdbcf04c1dbd14a8e7dca6952b3 |
| container_end_page | 379 |
| container_issue | 1 |
| container_start_page | 371 |
| container_title | Journal of materials science |
| container_volume | 49 |
| creator | Çamurlu, H. Erdem Gençer, Ahmet Becer, Burcu |
| description | Catalytic effects of Li, Na, K and Ca carbonates on carbothermic formation of hexagonal boron nitride (hBN) were investigated. Experiments were conducted by keeping the plain and catalyst added B
2
O
3
+ C powder mixtures at 1400 °C in flowing nitrogen for 40–160 min. Products were subjected to quantitative and X-ray diffraction analyses, scanning and transmission electron microscopy examinations, and particle size measurements. Investigated catalysts increased the amount, particle size and crystallinity of the formed hBN. Average particle sizes of the obtained hBN powders were in 150–350 nm range. Catalytically, lithium and sodium carbonates were found to be the most effective, whereas calcium carbonate was the least effective. In the experiments conducted for 80 min, the quantity of the formed hBN increased 13-fold when 40 wt% Li
2
CO
3
was used, as compared to plain mixture. The increases were ninefold and fourfold for the same duration when 40 wt% K
2
CO
3
and 10 % CaCO
3
were used, respectively. |
| doi_str_mv | 10.1007/s10853-013-7714-x |
| format | article |
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2
O
3
+ C powder mixtures at 1400 °C in flowing nitrogen for 40–160 min. Products were subjected to quantitative and X-ray diffraction analyses, scanning and transmission electron microscopy examinations, and particle size measurements. Investigated catalysts increased the amount, particle size and crystallinity of the formed hBN. Average particle sizes of the obtained hBN powders were in 150–350 nm range. Catalytically, lithium and sodium carbonates were found to be the most effective, whereas calcium carbonate was the least effective. In the experiments conducted for 80 min, the quantity of the formed hBN increased 13-fold when 40 wt% Li
2
CO
3
was used, as compared to plain mixture. The increases were ninefold and fourfold for the same duration when 40 wt% K
2
CO
3
and 10 % CaCO
3
were used, respectively.</description><identifier>ISSN: 0022-2461</identifier><identifier>EISSN: 1573-4803</identifier><identifier>DOI: 10.1007/s10853-013-7714-x</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Boron nitride ; Boron oxides ; Calcium carbonate ; Carbonates ; Carbothermic reactions ; Catalysts ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Classical Mechanics ; Crystallography and Scattering Methods ; Diffraction ; Lithium ; Materials Science ; Particle size ; Polymer Sciences ; Potassium carbonate ; Powders ; Sodium carbonate ; Solid Mechanics ; Toy industry ; X-rays</subject><ispartof>Journal of materials science, 2014, Vol.49 (1), p.371-379</ispartof><rights>Springer Science+Business Media New York 2013</rights><rights>COPYRIGHT 2014 Springer</rights><rights>Springer Science+Business Media New York 2013.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c426t-3d901c209db84164777432e222c060f7f3923bdbcf04c1dbd14a8e7dca6952b3</citedby><cites>FETCH-LOGICAL-c426t-3d901c209db84164777432e222c060f7f3923bdbcf04c1dbd14a8e7dca6952b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Çamurlu, H. Erdem</creatorcontrib><creatorcontrib>Gençer, Ahmet</creatorcontrib><creatorcontrib>Becer, Burcu</creatorcontrib><title>Comparative catalytic study on the carbothermic formation of hexagonal boron nitride with Li, Na, K and Ca carbonates</title><title>Journal of materials science</title><addtitle>J Mater Sci</addtitle><description>Catalytic effects of Li, Na, K and Ca carbonates on carbothermic formation of hexagonal boron nitride (hBN) were investigated. Experiments were conducted by keeping the plain and catalyst added B
2
O
3
+ C powder mixtures at 1400 °C in flowing nitrogen for 40–160 min. Products were subjected to quantitative and X-ray diffraction analyses, scanning and transmission electron microscopy examinations, and particle size measurements. Investigated catalysts increased the amount, particle size and crystallinity of the formed hBN. Average particle sizes of the obtained hBN powders were in 150–350 nm range. Catalytically, lithium and sodium carbonates were found to be the most effective, whereas calcium carbonate was the least effective. In the experiments conducted for 80 min, the quantity of the formed hBN increased 13-fold when 40 wt% Li
2
CO
3
was used, as compared to plain mixture. The increases were ninefold and fourfold for the same duration when 40 wt% K
2
CO
3
and 10 % CaCO
3
were used, respectively.</description><subject>Boron nitride</subject><subject>Boron oxides</subject><subject>Calcium carbonate</subject><subject>Carbonates</subject><subject>Carbothermic reactions</subject><subject>Catalysts</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Classical Mechanics</subject><subject>Crystallography and Scattering Methods</subject><subject>Diffraction</subject><subject>Lithium</subject><subject>Materials Science</subject><subject>Particle size</subject><subject>Polymer Sciences</subject><subject>Potassium carbonate</subject><subject>Powders</subject><subject>Sodium carbonate</subject><subject>Solid Mechanics</subject><subject>Toy industry</subject><subject>X-rays</subject><issn>0022-2461</issn><issn>1573-4803</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp1kUuLFDEUhYMo2I7-AHcBV8LUePOoStVyaHwMNgo6-3Arj-4M3ZU2SY3d_940JcgsJIuEc79zOeEQ8pbBDQNQHzKDvhUNMNEoxWRzekZWrFWikT2I52QFwHnDZcdeklc5PwBAqzhbkXkdD0dMWMKjowYL7s8lGJrLbM80TrTsLnIaY32kQ534mA6VrqPo6c6dcBsn3NMxpipNoaRgHf0dyo5uwjX9htf0K8XJ0jUueyYsLr8mLzzus3vz974i958-3q-_NJvvn-_Wt5vGSN6VRtgBmOEw2LGXrJNKKSm445wb6MArLwYuRjsaD9IwO1omsXfKGuyGlo_iirxb1h5T_DW7XPRDnFONmzWXvOd916qhUjcLtcW902HysSQ09VhXPxwn50PVb0Unahomu2p4_8RQmeJOZYtzzvru54-nLFtYk2LOyXl9TOGA6awZ6EtzemlO1-b0pTl9qh6-eHJlp61L_2L_3_QHEpObEQ</recordid><startdate>2014</startdate><enddate>2014</enddate><creator>Çamurlu, H. 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Erdem ; Gençer, Ahmet ; Becer, Burcu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c426t-3d901c209db84164777432e222c060f7f3923bdbcf04c1dbd14a8e7dca6952b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Boron nitride</topic><topic>Boron oxides</topic><topic>Calcium carbonate</topic><topic>Carbonates</topic><topic>Carbothermic reactions</topic><topic>Catalysts</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Classical Mechanics</topic><topic>Crystallography and Scattering Methods</topic><topic>Diffraction</topic><topic>Lithium</topic><topic>Materials Science</topic><topic>Particle size</topic><topic>Polymer Sciences</topic><topic>Potassium carbonate</topic><topic>Powders</topic><topic>Sodium carbonate</topic><topic>Solid Mechanics</topic><topic>Toy industry</topic><topic>X-rays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Çamurlu, H. Erdem</creatorcontrib><creatorcontrib>Gençer, Ahmet</creatorcontrib><creatorcontrib>Becer, Burcu</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Materials Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Engineering Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><jtitle>Journal of materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Çamurlu, H. Erdem</au><au>Gençer, Ahmet</au><au>Becer, Burcu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparative catalytic study on the carbothermic formation of hexagonal boron nitride with Li, Na, K and Ca carbonates</atitle><jtitle>Journal of materials science</jtitle><stitle>J Mater Sci</stitle><date>2014</date><risdate>2014</risdate><volume>49</volume><issue>1</issue><spage>371</spage><epage>379</epage><pages>371-379</pages><issn>0022-2461</issn><eissn>1573-4803</eissn><abstract>Catalytic effects of Li, Na, K and Ca carbonates on carbothermic formation of hexagonal boron nitride (hBN) were investigated. Experiments were conducted by keeping the plain and catalyst added B
2
O
3
+ C powder mixtures at 1400 °C in flowing nitrogen for 40–160 min. Products were subjected to quantitative and X-ray diffraction analyses, scanning and transmission electron microscopy examinations, and particle size measurements. Investigated catalysts increased the amount, particle size and crystallinity of the formed hBN. Average particle sizes of the obtained hBN powders were in 150–350 nm range. Catalytically, lithium and sodium carbonates were found to be the most effective, whereas calcium carbonate was the least effective. In the experiments conducted for 80 min, the quantity of the formed hBN increased 13-fold when 40 wt% Li
2
CO
3
was used, as compared to plain mixture. The increases were ninefold and fourfold for the same duration when 40 wt% K
2
CO
3
and 10 % CaCO
3
were used, respectively.</abstract><cop>Boston</cop><pub>Springer US</pub><doi>10.1007/s10853-013-7714-x</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-2461 |
| ispartof | Journal of materials science, 2014, Vol.49 (1), p.371-379 |
| issn | 0022-2461 1573-4803 |
| language | eng |
| recordid | cdi_proquest_journals_2428286579 |
| source | Springer Nature |
| subjects | Boron nitride Boron oxides Calcium carbonate Carbonates Carbothermic reactions Catalysts Characterization and Evaluation of Materials Chemistry and Materials Science Classical Mechanics Crystallography and Scattering Methods Diffraction Lithium Materials Science Particle size Polymer Sciences Potassium carbonate Powders Sodium carbonate Solid Mechanics Toy industry X-rays |
| title | Comparative catalytic study on the carbothermic formation of hexagonal boron nitride with Li, Na, K and Ca carbonates |
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