Hot Gas Blower (Cyberstar)

About

11-BM has a dedicated Cyberstar Hot Gas Blower. This can be used to heat small diameter capillary samples from ambient temperature to ~ 950 °C

About

Temperature Range and Ramp Rate.

• ambient temperature to ~ 950 °C
• Max ramp rate on heating & cooling is 5 deg C/min (300 C/hour)

Users should plan experiments to incorporate these heating and cooling ramp times.

11-BM Hot Gas Blower Image

Temperature Profile & Alignment

Temperature Calibration

Al2O3 Thermal Expansion

In-situ calibration of the hot gas blower was performed (summer 2012) using the known (Reference 1) thermal expansion of Al2O3 (alumina) a & c unit cell parameters as a function of temperature.

Full diffraction patterns were collected for select (nominal) temperatures between 100 - 950 C at 11-BM using a X.X mm diameter fused quartz capillary load with ??? Al2O3 powder.

Refined

Note: these 11-BM calibration results a kindly shared by Jae-Hyuk Her, GE Global Research.

Reference 1 = J. Appl. Cryst. (1993). 26, 77-81 N. E. Brown, S. M. Swapp, C. L. Bennett and A. Navrotsky

Phase Transitions

SiO2

PbTiO3