The difference between graphite silicon carbide and clay graphite crucibles

Graphite silicon carbide crucibles and clay graphite crucibles are two common laboratory vessels that have some significant differences in materials, properties, and applications.

Material:

Graphite silicon carbide crucible: Made of graphite silicon carbide material, it has high temperature stability, corrosion resistance and good thermal conductivity.
Clay graphite crucible: usually made of a mixture of clay and graphite, with low graphite content, mainly using clay as the base material, and graphite is added mainly to improve its high temperature resistance.
Temperature resistance:

Graphite silicon carbide crucible: It can withstand extremely high temperatures and can usually be used in the temperature range of 1500°C to 2000°C or even higher.
Clay graphite crucible: The temperature resistance is relatively low, and the usual use temperature range is 800°C to 1000°C. Exceeding this temperature range can easily cause damage or deformation of the crucible.
Corrosion resistance:

Graphite silicon carbide crucible: It has high corrosion resistance and can resist the erosion of chemicals such as acids and alkalis.
Clay Graphite Crucible: Due to its relatively high clay content compared to graphite silicon carbide, it may be less resistant to certain highly corrosive chemicals.
Thermal Conductivity:

Graphite silicon carbide crucible: It has good thermal conductivity and can transfer heat to the sample quickly and evenly.
Clay graphite crucible: Its thermal conductivity may be slightly worse than graphite silicon carbide crucible.
Price and application:

Graphite silicon carbide crucible: Generally more expensive, but suitable for experiments and applications that require high temperatures and corrosion resistance.
Clay graphite crucible: The price is relatively low, suitable for general laboratory applications, occasions where temperature requirements are not high, or where corrosion resistance requirements are not too strict.
In summary, graphite silicon carbide crucibles and clay graphite crucibles have significant differences in material, temperature resistance, corrosion resistance, thermal conductivity, etc. The choice of which type of crucible to use should be based on specific experimental needs and requirements. You can consult us and we will provide you with professional services.