Wikidata:Property proposal/glass transition temperature

glass transition temperature edit

Originally proposed at Wikidata:Property proposal/Natural science

Done: glass transition temperature (P5670) (Talk and documentation)

Description	transition in amorphous materials from a hard and relatively brittle "glassy" state into a viscous or rubbery state as the temperature is increased
Represents	glass transition (Q825643)
Data type	Quantity
Template parameter	This proprety request is part of the project of creating an infobox for materials.
Domain	Physical and mechanical property of stainless steel (Q172587).
Allowed values	Any number.
Allowed units	kelvin (Q11579), degree Celsius (Q25267), degree Fahrenheit (Q42289)
Example 1	polyamide (Q145273) → 47–60 degree Celsius (Q25267)
Example 2	polylactic acid (Q413769) → 60–65 degree Celsius (Q25267)
Example 3	acrylonitrile butadiene styrene (Q143496) → 105 degree Celsius (Q25267)
Example 4	polyvinyl chloride (Q146368) → 80 degree Celsius (Q25267)
Source	w:Glass_transition#Transition_temperature_T
Planned use	Creating an infobox for materials

Motivation

This is part of the project of creating an infobox for materials. Classical property of polymers. --Thibdx (talk) 14:44, 8 August 2018 (UTC)[reply]

Discussion

Support It tends to be a range, you're ok with using the built-in quantity +- feature for this? ArthurPSmith (talk) 17:33, 8 August 2018 (UTC)[reply]

Many material properties are a range so that we will have to deal with it. It would be simpler if we had the choice to write it 20~25 rather than 22.5±2.5. A potential improvement for the Quantity datatype ? --Thibdx (talk) 09:35, 9 August 2018 (UTC)[reply]

Support David (talk) 09:09, 9 August 2018 (UTC)[reply]

@Thibdx, ديفيد عادل وهبة خليل 2, ArthurPSmith: Done: glass transition temperature (P5670). − Pintoch (talk) 09:12, 19 August 2018 (UTC)[reply]