Reduction of Shear Stresses in Friction Units with an Electrical Insulation Coating of the ITER Blanket Modules
During operation of the International Thermonuclear Experimental Reactor (ITER), its removable blanket modules undergo significant shock loads in the process of plasma disruption, which lead to the displacement of parts with a gas-thermal insulating coating on the mount points of the protective pane...
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| Veröffentlicht in: | Journal of machinery manufacture and reliability 2020-12, Vol.49 (9), p.763-769 |
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| creator | Zaitsev, A. N. Aleksandrova, Yu. P. |
| description | During operation of the International Thermonuclear Experimental Reactor (ITER), its removable blanket modules undergo significant shock loads in the process of plasma disruption, which lead to the displacement of parts with a gas-thermal insulating coating on the mount points of the protective panels of the vacuum chamber. A high friction coefficient
≥ 0.28 at maximum shear resistance provokes peeling, fracturing, and chipping of insulating coatings. Methods of reducing the friction coefficient of supporting surfaces coated with an electrical insulation coating (Al
2
O
3
, MgAl
2
O
4
) and mount points of the ITER blanket modules experiencing significant shear stresses are considered. The tribotechnical tests of electrical insulating coatings paired with the proposed modified zirconium alloy plates with an antifriction layer in the range of sliding speeds
= 10
–5
−10
–2
m/s, loads
= 100−600 N according to the pin-on-disk scheme at temperatures
= 20°C,
T
= 250°C showed a change in the friction coefficient in the range
= 0.08−0.23 and high wear resistance of ceramic coatings. The use of innovative intermediate plates with a modified layer (ZrO
2
−C) in blanket modules could be an alternative to low pressure plasma spraying of an antifriction MoS
2
finish layer on electrical insulation coatings. |
| doi_str_mv | 10.3103/S1052618820090137 |
| format | Article |
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≥ 0.28 at maximum shear resistance provokes peeling, fracturing, and chipping of insulating coatings. Methods of reducing the friction coefficient of supporting surfaces coated with an electrical insulation coating (Al
2
O
3
, MgAl
2
O
4
) and mount points of the ITER blanket modules experiencing significant shear stresses are considered. The tribotechnical tests of electrical insulating coatings paired with the proposed modified zirconium alloy plates with an antifriction layer in the range of sliding speeds
= 10
–5
−10
–2
m/s, loads
= 100−600 N according to the pin-on-disk scheme at temperatures
= 20°C,
T
= 250°C showed a change in the friction coefficient in the range
= 0.08−0.23 and high wear resistance of ceramic coatings. The use of innovative intermediate plates with a modified layer (ZrO
2
−C) in blanket modules could be an alternative to low pressure plasma spraying of an antifriction MoS
2
finish layer on electrical insulation coatings.</description><identifier>ISSN: 1052-6188</identifier><identifier>EISSN: 1934-9394</identifier><identifier>DOI: 10.3103/S1052618820090137</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Aluminum oxide ; Antifriction bearings ; Ceramic coatings ; Chipping ; Coefficient of friction ; Electrical insulation ; Engineering ; Friction ; Friction reduction ; Low pressure ; Machines ; Manufacturing ; Metal plates ; Modules ; Plasma spraying ; Processes ; Protective coatings ; Reliability ; Shear strength ; Shear stress ; Shock loads ; Strength ; Stresses ; Vacuum chambers ; Wear resistance ; Wear Resistance of Machines and Structures ; Zirconium alloys ; Zirconium base alloys ; Zirconium dioxide</subject><ispartof>Journal of machinery manufacture and reliability, 2020-12, Vol.49 (9), p.763-769</ispartof><rights>Allerton Press, Inc. 2020. ISSN 1052-6188, Journal of Machinery Manufacture and Reliability, 2020, Vol. 49, No. 9, pp. 763–769. © Allerton Press, Inc., 2020. Russian Text © The Author(s), 2020, published in Problemy Mashinostroeniya i Avtomatizatsii, 2020, No. 2, pp. 24–30.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-fe023c74aaa23b832f3c4ad823ae77d6ea42031bdc2ce643ff12e4f8031de1d03</citedby><cites>FETCH-LOGICAL-c316t-fe023c74aaa23b832f3c4ad823ae77d6ea42031bdc2ce643ff12e4f8031de1d03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.3103/S1052618820090137$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.3103/S1052618820090137$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Zaitsev, A. N.</creatorcontrib><creatorcontrib>Aleksandrova, Yu. P.</creatorcontrib><title>Reduction of Shear Stresses in Friction Units with an Electrical Insulation Coating of the ITER Blanket Modules</title><title>Journal of machinery manufacture and reliability</title><addtitle>J. Mach. Manuf. Reliab</addtitle><description>During operation of the International Thermonuclear Experimental Reactor (ITER), its removable blanket modules undergo significant shock loads in the process of plasma disruption, which lead to the displacement of parts with a gas-thermal insulating coating on the mount points of the protective panels of the vacuum chamber. A high friction coefficient
≥ 0.28 at maximum shear resistance provokes peeling, fracturing, and chipping of insulating coatings. Methods of reducing the friction coefficient of supporting surfaces coated with an electrical insulation coating (Al
2
O
3
, MgAl
2
O
4
) and mount points of the ITER blanket modules experiencing significant shear stresses are considered. The tribotechnical tests of electrical insulating coatings paired with the proposed modified zirconium alloy plates with an antifriction layer in the range of sliding speeds
= 10
–5
−10
–2
m/s, loads
= 100−600 N according to the pin-on-disk scheme at temperatures
= 20°C,
T
= 250°C showed a change in the friction coefficient in the range
= 0.08−0.23 and high wear resistance of ceramic coatings. The use of innovative intermediate plates with a modified layer (ZrO
2
−C) in blanket modules could be an alternative to low pressure plasma spraying of an antifriction MoS
2
finish layer on electrical insulation coatings.</description><subject>Aluminum oxide</subject><subject>Antifriction bearings</subject><subject>Ceramic coatings</subject><subject>Chipping</subject><subject>Coefficient of friction</subject><subject>Electrical insulation</subject><subject>Engineering</subject><subject>Friction</subject><subject>Friction reduction</subject><subject>Low pressure</subject><subject>Machines</subject><subject>Manufacturing</subject><subject>Metal plates</subject><subject>Modules</subject><subject>Plasma spraying</subject><subject>Processes</subject><subject>Protective coatings</subject><subject>Reliability</subject><subject>Shear strength</subject><subject>Shear stress</subject><subject>Shock loads</subject><subject>Strength</subject><subject>Stresses</subject><subject>Vacuum chambers</subject><subject>Wear resistance</subject><subject>Wear Resistance of Machines and Structures</subject><subject>Zirconium alloys</subject><subject>Zirconium base alloys</subject><subject>Zirconium dioxide</subject><issn>1052-6188</issn><issn>1934-9394</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kEtLAzEUhYMoWKs_wF3A9Whe81pqabVQETrtekgzN-3UMalJBvHfmzqCC3F1L_c751w4CF1Tcssp4XcVJSnLaFEwQkpCeX6CRrTkIil5KU7jHnFy5Ofowvs9IWla8myE7BKaXoXWGmw1rnYgHa6CA-_B49bgmWsHujZt8PijDTssDZ52oEJEssNz4_tOfmsmNk6zPSaFHeD5arrED500rxDws236DvwlOtOy83D1M8doPZuuJk_J4uVxPrlfJIrTLCQaCOMqF1JKxjcFZ5orIZuCcQl53mQgBSOcbhrFFGSCa00ZCF3EWwO0IXyMbobcg7PvPfhQ723vTHxZM1GUpKRFKqKKDirlrPcOdH1w7Zt0nzUl9bHX-k-v0cMGj49aswX3m_y_6QvgVnoa</recordid><startdate>20201201</startdate><enddate>20201201</enddate><creator>Zaitsev, A. N.</creator><creator>Aleksandrova, Yu. P.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20201201</creationdate><title>Reduction of Shear Stresses in Friction Units with an Electrical Insulation Coating of the ITER Blanket Modules</title><author>Zaitsev, A. N. ; Aleksandrova, Yu. P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-fe023c74aaa23b832f3c4ad823ae77d6ea42031bdc2ce643ff12e4f8031de1d03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Aluminum oxide</topic><topic>Antifriction bearings</topic><topic>Ceramic coatings</topic><topic>Chipping</topic><topic>Coefficient of friction</topic><topic>Electrical insulation</topic><topic>Engineering</topic><topic>Friction</topic><topic>Friction reduction</topic><topic>Low pressure</topic><topic>Machines</topic><topic>Manufacturing</topic><topic>Metal plates</topic><topic>Modules</topic><topic>Plasma spraying</topic><topic>Processes</topic><topic>Protective coatings</topic><topic>Reliability</topic><topic>Shear strength</topic><topic>Shear stress</topic><topic>Shock loads</topic><topic>Strength</topic><topic>Stresses</topic><topic>Vacuum chambers</topic><topic>Wear resistance</topic><topic>Wear Resistance of Machines and Structures</topic><topic>Zirconium alloys</topic><topic>Zirconium base alloys</topic><topic>Zirconium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zaitsev, A. N.</creatorcontrib><creatorcontrib>Aleksandrova, Yu. P.</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of machinery manufacture and reliability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zaitsev, A. N.</au><au>Aleksandrova, Yu. P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reduction of Shear Stresses in Friction Units with an Electrical Insulation Coating of the ITER Blanket Modules</atitle><jtitle>Journal of machinery manufacture and reliability</jtitle><stitle>J. Mach. Manuf. Reliab</stitle><date>2020-12-01</date><risdate>2020</risdate><volume>49</volume><issue>9</issue><spage>763</spage><epage>769</epage><pages>763-769</pages><issn>1052-6188</issn><eissn>1934-9394</eissn><abstract>During operation of the International Thermonuclear Experimental Reactor (ITER), its removable blanket modules undergo significant shock loads in the process of plasma disruption, which lead to the displacement of parts with a gas-thermal insulating coating on the mount points of the protective panels of the vacuum chamber. A high friction coefficient
≥ 0.28 at maximum shear resistance provokes peeling, fracturing, and chipping of insulating coatings. Methods of reducing the friction coefficient of supporting surfaces coated with an electrical insulation coating (Al
2
O
3
, MgAl
2
O
4
) and mount points of the ITER blanket modules experiencing significant shear stresses are considered. The tribotechnical tests of electrical insulating coatings paired with the proposed modified zirconium alloy plates with an antifriction layer in the range of sliding speeds
= 10
–5
−10
–2
m/s, loads
= 100−600 N according to the pin-on-disk scheme at temperatures
= 20°C,
T
= 250°C showed a change in the friction coefficient in the range
= 0.08−0.23 and high wear resistance of ceramic coatings. The use of innovative intermediate plates with a modified layer (ZrO
2
−C) in blanket modules could be an alternative to low pressure plasma spraying of an antifriction MoS
2
finish layer on electrical insulation coatings.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.3103/S1052618820090137</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1052-6188 |
| ispartof | Journal of machinery manufacture and reliability, 2020-12, Vol.49 (9), p.763-769 |
| issn | 1052-6188 1934-9394 |
| language | eng |
| recordid | cdi_proquest_journals_2489091854 |
| source | SpringerNature Journals |
| subjects | Aluminum oxide Antifriction bearings Ceramic coatings Chipping Coefficient of friction Electrical insulation Engineering Friction Friction reduction Low pressure Machines Manufacturing Metal plates Modules Plasma spraying Processes Protective coatings Reliability Shear strength Shear stress Shock loads Strength Stresses Vacuum chambers Wear resistance Wear Resistance of Machines and Structures Zirconium alloys Zirconium base alloys Zirconium dioxide |
| title | Reduction of Shear Stresses in Friction Units with an Electrical Insulation Coating of the ITER Blanket Modules |
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