Glass-based articles including a stress profile comprising two regions and methods of making

• Main Authors: REIMAN KEVIN BARRY, WILANTEWICZ TREVOR EDWARD, ROUSSEV ROSTISLAV VATCHEV, GROSS TIMOTHY MICHAEL, GUO XIAOJU, SCHNEIDER VITOR MARINO, ORAM PASCALE
• Format: Patent
• Language: English; Korean
• Published: 14.02.2024
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

두께 (t)를 한정하는 제1표면 및 상기 제1표면에 대립하는 제2표면, 및 응력 프로파일을 포함하는 유리-계 물품은 개시되고, 약 3 millimeters 이하의 두께 (t)를 가지며, 및 여기서, 약 0·t 내지 0.3·t 및 0.7·t을 초과하는 두께 범위 사이에 응력 프로파일의 모든 지점은, 약 -0.1MPa/micrometer 미만이거나 또는 약 0.1MPa/micrometer을 초과하는 기울기를 갖는 접선을 포함한다. 또한, 0.1㎜ 내지 2㎜ 범위의 두께 (t)를 갖는 유리-계 물품은 개시되며; 및 여기서, 약 0·t 내지 0.020·t 및 0.98·t을 초과하는 제1 두께 범위에서 응력 프로파일의 적어도 하나의 지점은, 약 -200MPa/micrometer 내지 약 -25MPa/micrometer 또는 약 25MPa/micrometer 내지 약 200MPa/micrometer의 기울기를 갖는 접선을 포함하고, 및 여기서, 약 0.035·t 내지 0.965·t 미만의 제2 두께 범위에서 응력 프로파일의 모든 지점은, 약 -15MPa/micrometer 내지 약 15MPa/micrometer의 기울기를 갖는 접선을 포함한다. Glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t), and a stress profile are disclosed having a thickness (t) of about 3 millimeters or less, and wherein all points of the stress profile between a thickness range from about 0●t up to 0.3●t and from greater than 0.7●t, comprise a tangent with a slope that is less than about -0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers. Also disclosed are glass-based articles having a thickness (t) in a range of 0.1 mm and 2 mm; and wherein at least one point of the stress profile in a first thickness range from about 0●t up to 0.020●t and greater than 0.98●t comprises a tangent with a slope of from about -200 MPa/micrometer to about -25 MPa/micrometer or about 25 MPa/micrometer to about 200 MPa/micrometer, and wherein all points of the stress profile in a second thickness range from about 0.035●t and less than 0.965●t comprise a tangent with a slope of from about -15 MPa/micrometer to about 15 MPa/micrometer.