b16.3° .16.3° a B-quartz stoneware (瓷砖) a-quartz 高岭土、长石、石英 (non tensile stress) 口热膨胀系数：石英(quartz)w23×10-6K-1 玻璃相(glassy phase)v3×10-6K-1 b 。Quartz Feldspar ■Mullite ('n)Asuejul 25m 1015202530354045505560 20(Grades) Ceramics International 41 (2015)13598- 6 13606
stoneware（瓷砖） 高岭土、长石、石英 热膨胀系数：石英（quartz）~23×10-6 K-1 玻璃相（glassy phase） ~3×10-6 K-1 Ceramics International 41 (2015) 13598- 13606 6
464 cm-1:bending vibration of the isolated SiO (v2 mode) motion of oxygen that bridges adjacent SiO. a 10um9 10 um d Quartz C ('n)Asuajul Feldspar Glassy matrix 10 um 20040060080010001200 Raman Shift(cm)
464 cm-1：bending vibration of the isolated SiO4 (ν2 mode) ，motion of oxygen that bridges adjacent SiO4 . 7
a 自471.3红移至467.8cm-1 470.5rel.11cm 拉应力的存在 468 rel.1/cm a A E2o-T0) A.E 467.8cm FWHM 18.3 cm 4707cm FWHM 12.8 cm' Quartz ih stoneware 471.3cm FWHM 12.4 cm Quartz grain Quartz single crysta 250 500 7501000 1250 420440460480500520540 Raman Shift(cm) Raman Shift(cm) 8
自471.3红移至467.8 cm-1 -拉应力的存在 8
自中心到边界，显著红移 a Centre b of grain 1,2 1,0 0,8 0,6 ◆ b 0,4 Border 0,2 470.5rel 0.0 425450475500 24681012 Raman Shift(cm) Distance from particle center(μm) 8μm 468 rel.1/cm 9
自中心到边界，显著红移 9
SiO,倾斜（变形） a B-quartz b16.3 16.3° Quartz particle a-quartz non tensile stress) a-quartz (tensile stress) Fig.7.(a)Schema of the b-quartz structure around the (001)axe (angle=0),(b)Schema of a-quartz structure (angle=+16.3)around (001)axe and (c)Schema of a-quartz structure deformation under non symmetric tensile force at the border of the embedded quartz particle.(Structure adapted from 401). 口有研究报道称在压应力下，使Si-O-Si的键角由 143.7减小为134.2° 口瓷砖内部镶嵌的石英晶粒：在拉应力作用下， SO,部分倾斜、部分不倾斜，致使拉曼峰峰形不 对称 10
SiO4倾斜（变形） 有研究报道称在压应力下，使Si-O-Si的键角由 143.7º减小为134.2º 瓷砖内部镶嵌的石英晶粒：在拉应力作用下， SiO4部分倾斜、部分不倾斜，致使拉曼峰峰形不 对称 10