PtIr20 deformed condition

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Description

The platinum-iridium material PtIr20 (in the literature also: Pt20Ir, Pt80Ir20, Pt / Ir80 / 20) is used for switch contacts as well as for laboratory devices or structural components such as eg. B. satellite control nozzles that are mechanically stressed, thermally and corrosively heavily used. The mechanical, thermal and corrosive resistance increases with increasing iridium content. In an oxidizing atmosphere, increased weight loss occurs in platinum-iridium alloys. PtIr20 is used for switches and relays for higher AC loads (currents over 300 mA at voltages above 12 V) with a long service life. Another field of application for this material is the use as a potentiometer alloy.

Related Standards

Degussa

Los datos sobre este material han sido proporcionados por WIAM.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

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Propiedades

General

Property	Temperature	Value
Densidad	20.0 °C	21.7 g/cm³ Show Material materials with Densidad of 21.7 g/cm³

Mecánica

Property	Temperature	Value	Comment
Coeficiente de Poisson	23.0 °C	0.39 [-] Show Material materials with Coeficiente de Poisson of 0.39 [-]	Typical for Platinum
Dureza Vickers	20.0 °C	300 [-] Show Material materials with Dureza Vickers of 300 [-]
Elongación	20.0 °C	2 % Show Material materials with Elongación of 2 %
Límite elástico Rp 0,2	20.0 °C	920 MPa Show Material materials with Límite elástico Rp 0,2 of 920 MPa
Módulo de cizallamiento	23.0 °C	62 GPa Show Material materials with Módulo de cizallamiento of 62 GPa	Typical for Platinum
Módulo elástico	20.0 °C	230 GPa Show Material materials with Módulo elástico of 230 GPa
Resistencia a la tracción	20.0 °C	650 - 940 MPa Show Material materials with Resistencia a la tracción of 650 - 940 MPa

Aplicaciones térmicas

Property	Temperature	Value	Comment
Calor específico	23.0 °C	136 J/(kg·K) Show Material materials with Calor específico of 136 J/(kg·K)	Typical for Platinum
Coeficiente de dilatación térmica	100.0 °C	8.3E-6 1/K Show Material materials with Coeficiente de dilatación térmica of 8.3E-6 1/K
Conductividad térmica	23.0 °C	69 - 73 W/(m·K) Show Material materials with Conductividad térmica of 69 - 73 W/(m·K)	Typical for Platinum
Temperatura de fusión		1769 °C Show Material materials with Temperatura de fusión of 1769 °C	Typical for Platinum

Eléctrico

Property	Temperature	Value
Resistividad eléctrica	20.0 °C	3.1E-7 Ω·m Show Material materials with Resistividad eléctrica of 3.1E-7 Ω·m

Chemical properties

Property	Value
Iridio	20 % Show Material materials with Iridio of 20 %
Platino	80 % Show Material materials with Platino of 80 %

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PtIr20 deformed condition

Description

Related Standards

Ashby charts

Lectura sugerida

Propiedades