Okwu Mmalite maka Insulator China n'ihe na-erughị nkeji iri

A na-akpọ ihe ndị na-adịghị mma na-eduzi ugbu ainsulators, na insulators na-akpọkwa dielectrics.

Ha nwere nnukwu resistivity.Nkọwa nke insulator: A na-akpọ ihe na-adịghị eduzi ọkụ eletrik ngwa ngwa

insulators.Enweghị oke oke n'etitiinsulatorsna ndị nduzi.

 

Atụmatụ

Njirimara nke insulators bụ na ebubo ndị dị mma na nke na-adịghị mma na ụmụ irighiri ihe ndị ahụ jikọtara ọnụ,

ma enwere obere ihe ebubo ebubo nke nwere ike ịgagharị n'efu.The macroscopic ugbu a kpụrụ site

a na-ewere mmegharị ahụ dị ka ihe na-adịghị eme ihe.

 

Omume omume

A na-ekpebi conductivity nke insulator site na omume nke electrons na ihe ahụ.Omume nke

electrons na kristal na-adabere na ike gbalaga Ọdịdị.A umi nwere kpamkpam efu conduction

band na otu valence band zuru ezu bụ ihe mkpuchi.Ike dị iche n'etiti ala nke band conduction

na n'elu nke valence band (band Mgbe ike ike dị ukwuu, ọ dịghị eduzi ọkụ eletrik n'okpuru

ebe eletrik na-emebu.N'ihi na bekee na obere ike gaps, ọ bụ ezie na ha bụ insulators mgbe okpomọkụ

dị ala, mgbe okpomọkụ na-abawanye, electrons valence band na-enwe mmasị na band conduction, ma ha

ga-eduzi ọkụ eletrik.Ke adianade do, mgbe electrons ma ọ bụ oghere na adịghị ọcha larịị ke gbalaga ọdịiche bụ

nwere obi ụtọ na band conduction ma ọ bụ valence band, ọ ga-eduzi ọkụ eletrik.

 

Ike mpaghara eletrik

A na-ekewa ndị insulators siri ike ụzọ abụọ: crystalline na amorphous.N'ezie insulator abụghị kpamkpam

na-adịghị eduzi.N'okpuru ọrụ nke ọkụ eletrik siri ike, ụgwọ dị mma na nke na-adịghị mma n'ime mkpuchi ahụ

ga-agbaji n'efu wee bụrụ ụgwọ efu, na arụ ọrụ mkpuchi ga-ebibi.Nke a onu bụ

akpọrọ dielectric breakdown.A na-akpọ ike ọkụ eletrik kachasị elu nke ihe dielectric nwere ike idi

ike nbibi nke ubi.

 

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Oge nzipu: Feb-16-2022