Faktorsu da Dukkantar Jiragenji na Mafi Zanani
Muhimmanci da take da tsafta na matarai suna cikin karshe –
Jirgin samun lokaci.
Kasancewa.
Tashin gajiya.
Take da tsafta na shekaru.
Take da tsafta na yanki.
Jirgin samun lokaci
Tsafukan tsafta na matarai take da jirgin samun lokaci. Tsaftukan manyan abubuwa masu zafi take da jirgin samun lokaci. Yawan take da tsaftukan na matarai da jirgin samun lokaci ana bayyana da rumar da ake bayyana a nan -
Amsa,
ρt1 ita ce tsaftukan na matarai a jirgin samun lokacin t1o C
da
ρt2 ita ce tsaftukan na matarai a jirgin samun lokacin t2oC
α1 ita ce kofin jirgin samun lokacin resistance na matarai a jirgin samun lokacin t1o C.
Idan hanyar α1 ita ce mafi yawa, tsaftukan na matarai take da yawa.
Tsaftukan manyan abubuwa masu zafi take da jirgin samun lokaci. Yana nufin cewa manyan abubuwa masu zafi suka da kofin jirgin samun lokacin yawa. Akwai manyan abubuwa masu zafi da suka nuna tsafukan da ba a bani a lokacin da jirgin samun lokacin ya karkara. Wannan al'amari ita ce “superconductivity”. Tsaftukan semiconductors da insulators take da yawa a lokacin da jirgin samun lokaci. Yana nufin cewa semiconductors da insulators suka da kofin jirgin samun lokacin rike.
Kasancewa
Kasancewa ita ce takamata mai sauƙi ga duwatsu ko kadan abubuwan zafi. Kasancewa na abubuwan zafi ana amfani a kan karfin waɗanda ake magana da muhimmanci a kan mechanical da electrical properties. Atomic structure na takamata mai sauƙi ita ce mai girma zuwa manyan abubuwan zafi mai sauƙi. Saboda haka, tsaftukan na takamata mai sauƙi take da yawa da yawa a lokacin da kasancewa ta zama da yawa. Tsarin duk wani impurity zai iya zama da yawa a tsaftukan abubuwan zafi. Hatta impurity na tsaftukan da ke rike zai iya zama da yawa a tsaftukan abubuwan zafi. Misali, impurity na silver (wanda tsaftukansa ita ce mafi rike a cikin duk abubuwan zafi) a copper zai iya zama da yawa a tsaftukan copper.
Tashin gajiya
Tashin gajiya na crystal structure na matarai zai yi shiga localized strains a crystal structure na matarai. Wadannan localized stains zai haifar da movement of free electrons through the material. Wannan zai result in an increase in resistivity of the material. Subsequently, annealing, of metal reduces the resistivity of metal. Annealing of metal, relieve the mechanical stressing of material due to which the localized stains got removed from the crystal structure of the metal. Due to which the resistivity of metal decrease. For example, the resistivity of hard drawn copper is more as compared to annealed copper.
Take da tsafta na shekaru
Take da tsafta na shekaru ita ce heat treatment process used to increase the yield strength and to develop the ability in alloys to resist the permanent deformation by external forces. Take da tsafta na shekaru ita ce “Precipitation Hardening”. Wannan process increases the strength of alloys by creating solid impurities or precipitate. These created solid impurities or precipitate, disturb the crystal structure of metal which interrupts the flow of free electrons through metal/Due to which the resistivity of metal increases.
Take da tsafta na yanki
Take da tsafta na yanki ita ce manufacturing process used to increase the strength of metals. Take da tsafta na yanki ita ce “Work hardening” ko “Strain hardening”. Take da tsafta na yanki ana amfani a kan karfin mechanical strength of the metal. Take da tsafta na yanki disturbs the crystal structure of metals which interfere with the movement of electrons in metal, due to which the resistivity of metal increases.
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