SILICON NITRIDE POWDER FOR SINTERING
To provide a β-type silicon nitride powder for obtaining a sintered body having high strength and high toughness.SOLUTION: A silicon nitride powder for sintering comprises a silicon nitride powder having a β formation ratio of 80% or more, in which when a volume frequency distribution curve showing...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Patent |
| Sprache: | eng ; jpn |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | GOTO KUNIHIRO ISHIMOTO RYUJI |
| description | To provide a β-type silicon nitride powder for obtaining a sintered body having high strength and high toughness.SOLUTION: A silicon nitride powder for sintering comprises a silicon nitride powder having a β formation ratio of 80% or more, in which when a volume frequency distribution curve showing the particle size distribution is subjected to waveform separation, there exist a separation waveform a having a peak within the range of 0.5 μm or more and 1 μm or less and a separation waveform b having a peak within the range of more than 1 μm and 3 μm or less, the total area of the separation waveform a and the separation waveform b is 60 to 98% based on the total area of the total separation waveform, and the ratio of the area of the separation waveform a to the area of the separation waveform b (Sa/Sb) is 0.4 to 0.8.SELECTED DRAWING: None
【課題】高強度及び高靭性の焼結体が得られるβ型の窒化ケイ素粉末を提供する。【解決手段】 β化率が８０％以上の窒化ケイ素粉末よりなり、その粒度分布を示す体積頻度分布曲線を波形分離したとき、０．５μｍ以上１μｍ以下の間にピークを有する分離波形ａ、１μｍ超３μｍ以下の間にピークを有する分離波形ｂが存在し、前記分離波形ａ及び分離波形ｂの合計面積は、全分離波形の合計面積に対して６０～９８％であり、前記分離波形ｂの面積に対する前記分離波形ａの面積の比（Ｓａ／Ｓｂ）が０．４～０．８であることを特徴とする、焼結用窒化ケイ素粉末。【選択図】なし |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2024010444A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2024010444A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2024010444A3</originalsourceid><addsrcrecordid>eNrjZFAJ9vTxdPb3U_DzDAnydHFVCPAPd3ENUnDzD1II9vQLcQ3y9HPnYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBkYmBoYGJiYmjsZEKQIAyl4jdA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>SILICON NITRIDE POWDER FOR SINTERING</title><source>esp@cenet</source><creator>GOTO KUNIHIRO ; ISHIMOTO RYUJI</creator><creatorcontrib>GOTO KUNIHIRO ; ISHIMOTO RYUJI</creatorcontrib><description>To provide a β-type silicon nitride powder for obtaining a sintered body having high strength and high toughness.SOLUTION: A silicon nitride powder for sintering comprises a silicon nitride powder having a β formation ratio of 80% or more, in which when a volume frequency distribution curve showing the particle size distribution is subjected to waveform separation, there exist a separation waveform a having a peak within the range of 0.5 μm or more and 1 μm or less and a separation waveform b having a peak within the range of more than 1 μm and 3 μm or less, the total area of the separation waveform a and the separation waveform b is 60 to 98% based on the total area of the total separation waveform, and the ratio of the area of the separation waveform a to the area of the separation waveform b (Sa/Sb) is 0.4 to 0.8.SELECTED DRAWING: None
【課題】高強度及び高靭性の焼結体が得られるβ型の窒化ケイ素粉末を提供する。【解決手段】 β化率が８０％以上の窒化ケイ素粉末よりなり、その粒度分布を示す体積頻度分布曲線を波形分離したとき、０．５μｍ以上１μｍ以下の間にピークを有する分離波形ａ、１μｍ超３μｍ以下の間にピークを有する分離波形ｂが存在し、前記分離波形ａ及び分離波形ｂの合計面積は、全分離波形の合計面積に対して６０～９８％であり、前記分離波形ｂの面積に対する前記分離波形ａの面積の比（Ｓａ／Ｓｂ）が０．４～０．８であることを特徴とする、焼結用窒化ケイ素粉末。【選択図】なし</description><language>eng ; jpn</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; COMPOUNDS THEREOF ; CONCRETE ; INORGANIC CHEMISTRY ; LIME, MAGNESIA ; METALLURGY ; NON-METALLIC ELEMENTS ; REFRACTORIES ; SLAG ; TREATMENT OF NATURAL STONE</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240124&DB=EPODOC&CC=JP&NR=2024010444A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240124&DB=EPODOC&CC=JP&NR=2024010444A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GOTO KUNIHIRO</creatorcontrib><creatorcontrib>ISHIMOTO RYUJI</creatorcontrib><title>SILICON NITRIDE POWDER FOR SINTERING</title><description>To provide a β-type silicon nitride powder for obtaining a sintered body having high strength and high toughness.SOLUTION: A silicon nitride powder for sintering comprises a silicon nitride powder having a β formation ratio of 80% or more, in which when a volume frequency distribution curve showing the particle size distribution is subjected to waveform separation, there exist a separation waveform a having a peak within the range of 0.5 μm or more and 1 μm or less and a separation waveform b having a peak within the range of more than 1 μm and 3 μm or less, the total area of the separation waveform a and the separation waveform b is 60 to 98% based on the total area of the total separation waveform, and the ratio of the area of the separation waveform a to the area of the separation waveform b (Sa/Sb) is 0.4 to 0.8.SELECTED DRAWING: None
【課題】高強度及び高靭性の焼結体が得られるβ型の窒化ケイ素粉末を提供する。【解決手段】 β化率が８０％以上の窒化ケイ素粉末よりなり、その粒度分布を示す体積頻度分布曲線を波形分離したとき、０．５μｍ以上１μｍ以下の間にピークを有する分離波形ａ、１μｍ超３μｍ以下の間にピークを有する分離波形ｂが存在し、前記分離波形ａ及び分離波形ｂの合計面積は、全分離波形の合計面積に対して６０～９８％であり、前記分離波形ｂの面積に対する前記分離波形ａの面積の比（Ｓａ／Ｓｂ）が０．４～０．８であることを特徴とする、焼結用窒化ケイ素粉末。【選択図】なし</description><subject>ARTIFICIAL STONE</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>COMPOUNDS THEREOF</subject><subject>CONCRETE</subject><subject>INORGANIC CHEMISTRY</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>NON-METALLIC ELEMENTS</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFAJ9vTxdPb3U_DzDAnydHFVCPAPd3ENUnDzD1II9vQLcQ3y9HPnYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBkYmBoYGJiYmjsZEKQIAyl4jdA</recordid><startdate>20240124</startdate><enddate>20240124</enddate><creator>GOTO KUNIHIRO</creator><creator>ISHIMOTO RYUJI</creator><scope>EVB</scope></search><sort><creationdate>20240124</creationdate><title>SILICON NITRIDE POWDER FOR SINTERING</title><author>GOTO KUNIHIRO ; ISHIMOTO RYUJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2024010444A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2024</creationdate><topic>ARTIFICIAL STONE</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>COMPOUNDS THEREOF</topic><topic>CONCRETE</topic><topic>INORGANIC CHEMISTRY</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>NON-METALLIC ELEMENTS</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>GOTO KUNIHIRO</creatorcontrib><creatorcontrib>ISHIMOTO RYUJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GOTO KUNIHIRO</au><au>ISHIMOTO RYUJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SILICON NITRIDE POWDER FOR SINTERING</title><date>2024-01-24</date><risdate>2024</risdate><abstract>To provide a β-type silicon nitride powder for obtaining a sintered body having high strength and high toughness.SOLUTION: A silicon nitride powder for sintering comprises a silicon nitride powder having a β formation ratio of 80% or more, in which when a volume frequency distribution curve showing the particle size distribution is subjected to waveform separation, there exist a separation waveform a having a peak within the range of 0.5 μm or more and 1 μm or less and a separation waveform b having a peak within the range of more than 1 μm and 3 μm or less, the total area of the separation waveform a and the separation waveform b is 60 to 98% based on the total area of the total separation waveform, and the ratio of the area of the separation waveform a to the area of the separation waveform b (Sa/Sb) is 0.4 to 0.8.SELECTED DRAWING: None
【課題】高強度及び高靭性の焼結体が得られるβ型の窒化ケイ素粉末を提供する。【解決手段】 β化率が８０％以上の窒化ケイ素粉末よりなり、その粒度分布を示す体積頻度分布曲線を波形分離したとき、０．５μｍ以上１μｍ以下の間にピークを有する分離波形ａ、１μｍ超３μｍ以下の間にピークを有する分離波形ｂが存在し、前記分離波形ａ及び分離波形ｂの合計面積は、全分離波形の合計面積に対して６０～９８％であり、前記分離波形ｂの面積に対する前記分離波形ａの面積の比（Ｓａ／Ｓｂ）が０．４～０．８であることを特徴とする、焼結用窒化ケイ素粉末。【選択図】なし</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng ; jpn |
| recordid | cdi_epo_espacenet_JP2024010444A |
| source | esp@cenet |
| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE INORGANIC CHEMISTRY LIME, MAGNESIA METALLURGY NON-METALLIC ELEMENTS REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
| title | SILICON NITRIDE POWDER FOR SINTERING |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-08T12%3A20%3A05IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=GOTO%20KUNIHIRO&rft.date=2024-01-24&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2024010444A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |