A method of fabricating a turbine engine part, the method including fabricating an ingot out of ceramic material of eutectic composition by performing the Czochralski process including putting a seed of the ingot that is to be obtained into contact with a molten bath of a mixture of eutectic composition in order to initiate the formation of the ingot on the seed, the mixture including at least two ceramic compounds; drawing the ingot from the molten bath while imposing on the ingot that is being formed a drawing speed less than or equal to 10 mm/h together with rotation at a speed of rotation less than or equal to 50 rpm; and machining the ingot as fabricated in this way in order to obtain the turbine engine part.

Providing a method of modifying refractory particles used to produce a casting mold by using a furan resin as a binder, so as to effectively improve a strength of the casting mold and to reduce a required amount of the binder. An artificial aggregate which is artificially produced and which has an apparent porosity of not more than 5% is used as the refractory particles, and the artificial aggregate is subjected to a heat treatment at a temperature of 400-1500 C. for not shorter than one hour in a heating atmosphere having an oxygen concentration of not higher than 15%.

Providing a method of modifying refractory particles used to produce a casting mold by using a furan resin as a binder, so as to effectively improve a strength of the casting mold and to reduce a required amount of the binder. An artificial aggregate which is artificially produced and which has an apparent porosity of not more than 5% is used as the refractory particles, and the artificial aggregate is subjected to a heat treatment at a temperature of 400-1500 C. for not shorter than one hour in a heating atmosphere having an oxygen concentration of not higher than 15%.

Provided are electrofused alumina grains excellent in grinding performance and a production method of such electrofused alumina grains, and a grinding stone and a coated abrasive using the electrofused alumina grains. The electrofused alumina grains of the present invention contain titanium and magnesium. The production method for the electrofused alumina grains includes the steps of: preparing a mixture material by mixing an alumina material, a titanium compound and a magnesium compound, forming an ingot from the mixture material according to an electrofusing process, grinding the ingot to prepare a ground powder, size-regulating the ground powder to have a predetermined grain size to prepare size-regulated grains, and heating the size-regulated grains at a heating temperature of 1,000 C. or higher to give electrofused alumina grains. The grinding stone contains the electrofused alumina grains. The coated abrasive contains the electrofused alumina grains.

The invention concerns a batch for the production of a refractory product, a process for the production of a refractory product, a refractory product as well as the use of a refractory product.

The invention concerns a batch for the production of a refractory product, a process for the production of a refractory product, a refractory product as well as the use of a refractory product.

The invention concerns a batch for the production of a refractory product, a process for the production of a refractory product, a refractory product as well as the use of a refractory product.

The invention relates to a refractory ceramic product.

The invention relates to a refractory ceramic product.

The invention concerns a batch for the production of a refractory product, a process for the production of a refractory product, a refractory product as well as the use of a refractory product.