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
flagItaly
12%
6%
6%
74%
31
flagMalaysia
11%
11%
3%
73%
26
flagFrance
4%
24%
0%
71%
49
flagthe United Arab Emirates
3%
3%
15%
69%
26
flagDenmark
0%
33%
0%
66%
24
flagthe United Kingdom
6%
23%
2%
65%
592
flagthe Netherlands
11%
22%
0%
65%
79
flagPoland
8%
27%
2%
61%
14037
flagGermany
4%
32%
0%
61%
193
flagPakistan
4%
14%
17%
60%
41
flagthe United States
10%
22%
6%
59%
1043
flagNorway
9%
27%
4%
59%
44
flagIndia
9%
23%
6%
58%
509
flagthe Philippines
7%
17%
11%
58%
51
flagRepublic of Ireland
6%
35%
3%
55%
60
flagCanada
7%
30%
5%
54%
53
flagUkraine
18%
22%
4%
54%
22
flagUnknown
1%
49%
0%
49%
69
flagNigeria
13%
13%
22%
45%
22

Gender

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

Language versions

question
answers
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flag
What kind of material is this cooktop made of?
2444
60%

Details

Author: Bob Stanley
Illustration: Kai Hendry
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