et

invar

1 substantive

EKI Combined Dictionary 2026

Last modified 02.11.2026

Meanings

soojenemisel väga vähe paisuv raua ja nikli sulam

Translations

Terminological databases

Engineering, Manufacturing and Construction

Materjalitehnika terminibaas

ID 673407 Last modified 10.09.2026
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Domain non-ferrous metals
Invar preferred
  • vähima soojuspaisumisega rauaniklisulam niklisisaldusega u 36%
  • a 36% nickel-iron alloy with a very small thermal expansion coefficient of 1.3x10-6 oC-1 from 15 to 250 oC, which makes it suitable for use in making ceramic-to-metal and glass-to-metal seals
    Good to know
    • Invar has the lowest thermal expansion coefficient of iron-nickel alloys.
invar
Invar preferred
Good to know
  • Trade name.
invariable
инвар

Metroloogia terminibaas

ID 1200092 Last modified 02.11.2026
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Domain metrologymeasuring instrumentsmeasuring procedures
invar
FeNi36
invar
FeNi36
  • nikli-raua sulam, mis on märkimisväärne oma erakordselt väikese soojuspaisumisteguri (CTE ehk α) poolest
  • nickel–iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α)
invar
Usage examples
  • Invari kasutatakse olukordades, kus on nõutav suur mõõtmete stabiilsus, nt täppisinstrumentides, kellades, seismilistes nihkemõõturites, värviteleviisorite kineskoopide varimaski raamides, mootoriklappides ning suurtes lennukikonstruktsioonides. Invari saab töödelda laseriga pulbrikihi sulatamise meetodil, mis pakub erilist huvi komposiitmaterjalide vormide ja täppisinstrumentide valmistamisel, kuna protsess võimaldab luua peaaegu lõpliku kujuga osiseid, mille madal soojuspaisumistegur säilib ka vahetult pärast valmistamist.
FeNi36 symbol
64FeNi symbol
invar
Usage examples
  • Invar is used where high dimensional stability is required, such as precision instruments, clocks, seismic creep gauges, color-television tubes' shadow-mask frames, valves in engines and large aerostructure molds. Invar can be processed by laser powder bed fusion (LPBF), which is of particular interest for composite-tooling and precision-instrument applications because the process can produce near-net-shape components whose low coefficient of thermal expansion is retained in the as-built condition.
FeNi36 symbol
64FeNi symbol

Other

Koolisõnastikud 2005–2010

ID 599030 Last modified 26.04.2021
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Domain chemistry
  • väga väikese soojuspaisumisteguriga nikli ja raua sulam
инвар

Word forms

Inflection Type 2e

invar invarid
invari invarite
invarit invareid

Etymology

Related words not available

Phrases and phrasal verbs not available

Compounds with search word as second component not available

Compounds with search word as first component not available

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