摘要:
The invention relates to substrate material for X-ray optical components for X-rays of wavelength μR, comprising a glass ceramic material with a glass phase made of amorphous material and with a crystal phase containing microcrystallites. The amorphous material has a positive thermal expansion and the microcrystallites have a negative thermal expansion, and the stoichiometric ratio of crystal to glass phase is set such that the thermal expansion α of the glass ceramic material, within a temperature range of 20 °C to 100 °C, is
摘要:
The invention relates to substrate material for X-ray optical components for X-rays of wavelength μR, comprising a glass ceramic material with a glass phase made of amorphous material and with a crystal phase containing microcrystallites. The amorphous material has a positive thermal expansion and the microcrystallites have a negative thermal expansion, and the stoichiometric ratio of crystal to glass phase is set such that the thermal expansion α of the glass ceramic material, within a temperature range of 20 °C to 100 °C, is