Table 2 Properties of the glasses determined with pycnometry (pyc), dilatometry (dil), DSC, and hot-stage microscopy (HSM). Tg - onset of the glass transition; Td - dilatometric softening temperature; α300–500 - technical coefficient of thermal expansion between 300 and 500 °C; αreg - coefficient of thermal expansion determined by the slope of a linear fit of the dilatation curve between 200 and 500 °C; TFS - sintering onset (first shrinkage); TMS - end of sintering (maximum shrinkage). The values of the sample Sr-08 are reported in ref. 17.
From: Variable thermal expansion of glass-ceramics containing Ba1−xSrxZn2Si2O7
Sample | Density [g/cm³] | Tg [°C] | Tg [°C] | Td [°C] | α300–500 [10−6·K−1] | αreg [10−6·K−1] | TFS [°C] | TMS [°C] |
|---|---|---|---|---|---|---|---|---|
Method | pyc | DSC | dil | dil | dil | dil | HSM | HSM |
Sr-00 | 4.105 | 653 | 660 | 699 | 7.66 | 7.54 | 716 | 762 |
Sr-01 | 4.079 | 655 | 663 | 702 | 7.76 | 7.58 | 721 | 765 |
Sr-02 | 4.090 | 653 | 658 | 701 | 7.74 | 7.57 | 719 | 771 |
Sr-03 | 4.062 | 658 | 661 | 706 | 7.98 | 7.72 | 721 | 777 |
Sr-04 | 4.050 | 656 | 659 | 699 | 7.65 | 7.54 | 722 | 766 |
Sr-05 | 4.045 | 655 | 657 | 693 | 7.85 | 7.64 | 715 | 769 |
Sr-06 | 4.026 | 652 | 655 | 704 | 7.68 | 7.51 | 721 | 764 |
Sr-07 | 4.005 | 655 | 655 | 702 | 7.77 | 7.60 | 722 | 770 |
Sr-09 | 3.981 | 653 | 656 | 696 | 7.92 | 7.71 | 710 | 770 |
Sr−10 | 3.960 | 649 | 654 | 700 | 7.32 | 7.16 | 716 | 774 |
Sr-11 | 3.956 | 654 | 653 | 699 | 6.98 | 6.80 | 710 | 772 |
Sr-12 | 3.942 | 654 | 656 | 695 | 7.51 | 7.32 | 710 | 770 |
Sr-13 | 3.919 | 652 | 657 | 704 | 7.45 | 7.29 | 725 | 771 |
Sr-14 | 3.906 | 649 | 652 | 688 | 7.15 | 6.88 | 715 | 766 |
Sr-15 | 3.871 | 649 | 656 | 703 | 7.58 | 7.44 | 725 | 770 |
Sr-16 | 3.854 | 647 | 653 | 692 | 7.71 | 7.52 | 709 | 765 |
