Post-construction materials, including concrete, containing water insoluble polymers are disclosed herein. The water insoluble polymers are formed beneath the surface of the post-construction material using a first composition comprising a blend of fatty acid salts and a second composition comprising alkaline earth metal halides or alkaline earth metal carbonates.

Post-construction materials, including concrete, containing water insoluble polymers are disclosed herein. The water insoluble polymers are formed beneath the surface of the post-construction material using a first composition comprising a blend of fatty acid salts and a second composition comprising alkaline earth metal halides or alkaline earth metal carbonates.

In one aspect, an article comprises a substrate that comprises a ceramic matrix composite; and a metal oxide layer disposed on the substrate; where the metal oxide layer has a marking etched into the metal oxide via laser ablation. The markings include alphabets, numbers, symbols, bar codes, matrix bar codes, quick response codes, or a combination thereof. Disclosed herein too is a method comprising disposing upon a ceramic matrix composite a metal oxide layer; and laser ablating the metal oxide layer to etch the metal oxide layer. The etchings produce markings that comprise alphabets, numbers, symbols, bar codes, matrix bar codes, quick response codes, or a combination thereof.

In one aspect, an article comprises a substrate that comprises a ceramic matrix composite; and a metal oxide layer disposed on the substrate; where the metal oxide layer has a marking etched into the metal oxide via laser ablation. The markings include alphabets, numbers, symbols, bar codes, matrix bar codes, quick response codes, or a combination thereof. Disclosed herein too is a method comprising disposing upon a ceramic matrix composite a metal oxide layer; and laser ablating the metal oxide layer to etch the metal oxide layer. The etchings produce markings that comprise alphabets, numbers, symbols, bar codes, matrix bar codes, quick response codes, or a combination thereof.

A gas turbine engine article includes a substrate and a silicate-resistant barrier coating disposed on the substrate. The silicate-resistant barrier coating is composed of a refractory matrix and a calcium aluminosilicate additive (CAS additive) dispersed in the refractory matrix.

A gas turbine engine article includes a substrate and a silicate-resistant barrier coating disposed on the substrate. The silicate-resistant barrier coating is composed of a refractory matrix and a calcium aluminosilicate additive (CAS additive) dispersed in the refractory matrix.

A coating fabrication method includes providing engineered granules and thermally consolidating the engineered granules on a substrate to form a silicate-resistant barrier coating. Each of the engineered granules is an aggregate of at least one refractory matrix region and at least one calcium aluminosilicate additive region (CAS additive region) attached with the at least one refractory matrix region. In the thermal consolidation, the refractory matrix region from the engineered granules form grains of a refractory matrix of the silicate-resistant barrier coating and the CAS additive region from the engineered granules form CAS additives that are dispersed in grain boundaries between the grains.

A coating fabrication method includes providing engineered granules and thermally consolidating the engineered granules on a substrate to form a silicate-resistant barrier coating. Each of the engineered granules is an aggregate of at least one refractory matrix region and at least one calcium aluminosilicate additive region (CAS additive region) attached with the at least one refractory matrix region. In the thermal consolidation, the refractory matrix region from the engineered granules form grains of a refractory matrix of the silicate-resistant barrier coating and the CAS additive region from the engineered granules form CAS additives that are dispersed in grain boundaries between the grains.

An environmental barrier coating, comprising a substrate containing silicon; an environmental barrier layer applied to said substrate; said environmental barrier layer comprising a rare earth composition.

An environmental barrier coating, comprising a substrate containing silicon; an environmental barrier layer applied to said substrate; said environmental barrier layer comprising a rare earth composition.