Assertion: muffle furnace | /r/HasProperty | kiln
Facets:
value: usually
type: DEGREE
value: for high-temperature applications
type: PURPOSE
Source sentences:
text: Today, a muffle furnace is (usually) a front-loading box-type oven or kiln for high-temperature applications such as fusing glass, creating enamel coatings, ceramics and soldering and brazing articles.