Table 1. High-temperature polymerization of alkynes and diynes monomer ~~ electric conductivity of polymer film [a] [Sjcm] undoped doped with I, propwe 10-8 l o -' 1-hexyne 10-2 butadiyne 10-8 10 1.5-hexadiyne 10-6 60 [a] Determined with the four-probe technique (4) The reaction time of the polymer
β¦ LIBER β¦
Glass-ceramics in the scheme of inorganic materials
β Scribed by Graham Partridge
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 430 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0935-9648
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## Abstract Chemical strengthening of dental ceramics by ion exchange has hitherto only been confirmed for feldspathic porcelains. The objective of this study was to examine whether the strength of lithium disilicate glassβceramics can be increased by ion exchange as well. A lithium disilicate glas