A method for counteracting tensile stress in an article, comprising: contacting the article with a fixture, said fixture including a first compression member, a second compression member, and a first position lock, including contacting the first compression member having a first compressive surface including a first mating conformation in contact with a first surface of the article; contacting the second compression member having a second compressive surface including a second mating conformation in contact with a second surface of the article; and reversibly locking the first position lock connecting the first compression member to the second compression member, fixing the first compression member relative to the second compression member, the first position lock including a first material composition; heating the article; thereby applying compressive stress to the article along a compressive stress vector, the compressive stress vector including a compressive stress vector component opposite in direction to a tensile stress vector of a thermally-induced tensile stress of the article, wherein the compressive stress is applied by thermally-induced autogenous pressure applied by the fixture contacting the article, wherein the first material composition includes a lower thermal expansion coefficient than the article, and expands less than the article during the heating, applying the compressive stress to the article. contacting the article with a fixture, said fixture including a first compression member, a second compression member, and a first position lock, including contacting the first compression member having a first compressive surface including a first mating conformation in contact with a first surface of the article; contacting the second compression member having a second compressive surface including a second mating conformation in contact with a second surface of the article; and reversibly locking the first position lock connecting the first compression member to the second compression member, fixing the first compression member relative to the second compression member, the first position lock including a first material composition; contacting the first compression member having a first compressive surface including a first mating conformation in contact with a first surface of the article; contacting the second compression member having a second compressive surface including a second mating conformation in contact with a second surface of the article; and reversibly locking the first position lock connecting the first compression member to the second compression member, fixing the first compression member relative to the second compression member, the first position lock including a first material composition; heating the article; thereby applying compressive stress to the article along a compressive stress vector, the compressive stress vector including a compressive stress vector component opposite in direction to a tensile stress vector of a thermally-induced tensile stress of the article, wherein the compressive stress is applied by thermally-induced autogenous pressure applied by the fixture contacting the article, wherein the first material composition includes a lower thermal expansion coefficient than the article, and expands less than the article during the heating, applying the compressive stress to the article.