What kind of material is this cooktop made of?

glass
ceramic
metal
glass-ceramic
Glass-ce­ram­ic ma­te­ri­als share many prop­er­ties with both non-crys­talline glass and crys­talline ce­ram­ic­s. The negative thermal ex­pan­sion of the crys­talline ceramic phase can be balanced with the positive ex­pan­sion of the glassy phase. At a certain point (~70% crys­talline) the glass-ce­ram­ic has a net ex­pan­sion near zero and can sustain repeated and quick tem­per­a­ture changes up to 1000 °C.

Answers distribution

glass
ceramic
metal
glass-ceramic
answers
flagAustralia
7%
13%
0%
78%
51
flagFrance
4%
20%
0%
74%
43
flagItaly
13%
6%
6%
73%
30
flagMalaysia
11%
11%
3%
73%
26
flagthe United Arab Emirates
3%
3%
15%
69%
26
flagthe Netherlands
10%
22%
0%
67%
76
flagDenmark
0%
33%
0%
66%
21
flagthe United Kingdom
7%
23%
3%
64%
551
flagPoland
8%
27%
2%
60%
13386
flagPakistan
5%
15%
17%
60%
40
flagSouth Africa
20%
20%
0%
60%
20
flagthe United States
10%
22%
6%
59%
1027
flagGermany
3%
33%
0%
59%
182
flagthe Philippines
8%
16%
12%
59%
49
flagIndia
9%
23%
6%
58%
488
flagNorway
9%
28%
4%
57%
42
flagUkraine
14%
23%
4%
57%
21
flagCanada
7%
30%
5%
54%
53
flagUU
0%
45%
0%
54%
33
flagRepublic of Ireland
7%
37%
1%
53%
56

Gender

men59%
women64%
glass
9%
7%
ceramic
27%
26%
metal
2%
2%
glass-ceramic
59%
64%

Language versions

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answers
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What kind of material is this cooktop made of?
2376
59%

Details

Author: Bob Stanley
Illustration: Kai Hendry
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