Měření měrné tepelné kapacity technických slitin v závislosti na teplotě

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F05%3A00013244" target="_blank" >RIV/61989100:27360/05:00013244 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermal Capacity Measurement of Engineering Alloys in Dependence on Temperature

Popis výsledku v původním jazyce

This paper deals with measurement of thermal capacity of electrically conductive materials. Combined furnace-direct resistance heating of sample is employed. Radiance heat transfer is reduced by proper shape of sample. Heat convection is eliminated by means of vacuum. The system is put into vacuum chamber. Vacuum also prevents the specimen from oxidation at high temperature. Sample is put into special furnace and its temperature is programmable. Temperature of the sample is measured by welded thermocouple. An electric rectangular pulse is brought into the sample and electric energy is changed directly into heat in sample volume. Amount of heat is calculated from pulse width, current and voltage across sample section. Voltage is sensed by probes weldedin distance s on the sample. Current is measured by standard shunt. Specific thermal capacity (specific heat) is calculated from supplied heat, temperature rise and mass of the sample. Electrical resisitivity and thermal conductivity can

Název v anglickém jazyce

Thermal Capacity Measurement of Engineering Alloys in Dependence on Temperature

Popis výsledku anglicky

This paper deals with measurement of thermal capacity of electrically conductive materials. Combined furnace-direct resistance heating of sample is employed. Radiance heat transfer is reduced by proper shape of sample. Heat convection is eliminated by means of vacuum. The system is put into vacuum chamber. Vacuum also prevents the specimen from oxidation at high temperature. Sample is put into special furnace and its temperature is programmable. Temperature of the sample is measured by welded thermocouple. An electric rectangular pulse is brought into the sample and electric energy is changed directly into heat in sample volume. Amount of heat is calculated from pulse width, current and voltage across sample section. Voltage is sensed by probes weldedin distance s on the sample. Current is measured by standard shunt. Specific thermal capacity (specific heat) is calculated from supplied heat, temperature rise and mass of the sample. Electrical resisitivity and thermal conductivity can

Druh

A - Audiovizuální tvorba

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F03%2F0264" target="_blank" >GA106/03/0264: Přenosové jevy při tuhnutí a jejich vliv na užitné vlastnosti materiálu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN

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Místo vydání

Bratislava

Název nakladatele resp. objednatele

STU Bratislava

Verze

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Identifikační číslo nosiče

80-8050-874-7