Reinforced microcrystalline glass, glass device and electronic apparatus

An electronic apparatus, comprising a cover, wherein the cover comprises the reinforced microcrystalline glass,

• wherein the reinforced microcrystalline glass comprises a compressive stress layer and a tensile stress layer, wherein main crystalline phases of the reinforced microcrystalline glass comprise a petalite crystalline phase and a lithium disilicate crystalline phase, and the reinforced microcrystalline glass satisfies conditions:
• surface CS≥500 MPa;
• |CT_AV|≥30 MPa, |CT_AV| is an absolute value of an average tensile stress in the tensile stress layer;
• |CT_CV|≥50 MPa, where |CT_CV| is an absolute value of a maximum tensile stress in the tensile stress layer;
• and
• DOL_0≥0.15t, where DOL_0 is a depth of the compressive stress layer, and t is a thickness of the reinforced microcrystalline glass.

A reinforced microcrystalline glass, wherein the reinforced microcrystalline glass comprises a compressive stress layer and a tensile stress layer, wherein main crystalline phases of the reinforced microcrystalline glass comprise a petalite crystalline phase and a lithium disilicate crystalline phase, and the reinforced microcrystalline glass satisfies conditions:

• surface CS≥500 MPa;
• |CT_AV|≥30 MPa, |CT_AV| is an absolute value of an average tensile stress in the tensile stress layer;
• |CT_CV|≥50 MPa, where |CT_CV| is an absolute value of a maximum tensile stress in the tensile stress layer;
• and
• DOL_0≥0.15t, where DOL_0 is a depth of the compressive stress layer, and t is a thickness of the reinforced microcrystalline glass.

A reinforced microcrystalline glass, wherein the reinforced microcrystalline glass comprises a compressive stress layer and a tensile stress layer, wherein main crystalline phases of the reinforced microcrystalline glass comprise a petalite crystalline phase and a lithium disilicate crystalline phase, and the reinforced microcrystalline glass satisfies conditions:

• surface CS≥400 MPa;
• surface CS/|CT_AV|≥17.00, where |CT_AV| is an absolute value of an average tensile stress in the tensile stress layer, with a unit of MPa;
• and
• DOL_0≥0.15t, where DOL_0 is a depth of the compressive stress layer, and t is a thickness of the reinforced microcrystalline glass.