A method of fabricating a ceramic component, the method comprising: initially partially filling pores of a porous structure using one of a first processing technique or a second, different processing technique to form a preform body with residual porosity, the first processing technique producing a first ceramic material in the pores and the second processing technique producing a second ceramic material in the pores that is different from the first ceramic material in at least one of composition, microstructure and physical property; when the first processing technique is used to initially partially fill the pores of the porous structure, thereafter performing the second processing technique to at least partially fill the residual porosity with the second ceramic material; and when the second processing technique is used to initially partially fill the pores of the porous structure, thereafter performing the first processing technique to at least partially fill the residual porosity with the first ceramic material, wherein the second ceramic material comprises a glass or glass/ceramic material that is silicate-based and includes a nucleating agent, wherein the first processing technique includes infiltration with a preceramic polymer material and thermal treatment to convert the preceramic polymer material to a ceramic material and the second processing technique includes infiltration with a heated, liquid glass or glass/ceramic material and solidification of the liquid glass or glass/ceramic material to a solid glass/ceramic material, the residual porosity is 20-43 volume percent of the preform body and the porous structure includes fibres and a coating on the fibres. initially partially filling pores of a porous structure using one of a first processing technique or a second, different processing technique to form a preform body with residual porosity, the first processing technique producing a first ceramic material in the pores and the second processing technique producing a second ceramic material in the pores that is different from the first ceramic material in at least one of composition, microstructure and physical property; when the first processing technique is used to initially partially fill the pores of the porous structure, thereafter performing the second processing technique to at least partially fill the residual porosity with the second ceramic material; and when the second processing technique is used to initially partially fill the pores of the porous structure, thereafter performing the first processing technique to at least partially fill the residual porosity with the first ceramic material, wherein the second ceramic material comprises a glass or glass/ceramic material that is silicate-based and includes a nucleating agent, wherein the first processing technique includes infiltration with a preceramic polymer material and thermal treatment to convert the preceramic polymer material to a ceramic material and the second processing technique includes infiltration with a heated, liquid glass or glass/ceramic material and solidification of the liquid glass or glass/ceramic material to a solid glass/ceramic material, the residual porosity is 20-43 volume percent of the preform body and the porous structure includes fibres and a coating on the fibres.