Consumable coatings and methods of protecting a high temperature component from dust deposits

A method of protecting a component of a turbomachine from dust deposits, the method comprising:

• applying a consumable coating on the component of the turbomachine, the component comprising a silicon containing substrate comprising a ceramic matrix composite and defining a substrate surface and an environmental barrier coating on the substrate surface, the environmental barrier coating defining a surface and comprising a rare earth silicate, an aluminosilicate, or a combination thereof, wherein the environmental barrier coating has a thickness from 25 micrometers (μm) to 2,000 μm, and the consumable coating applied on at least a portion of the barrier surface, the consumable coating configured to increase a number of thermal cycles before a decrease in the thickness of the environmental barrier coating is observed relative to a coated component without the consumable coating, wherein the consumable coating comprises 40 wt. % to 100 wt. % silica and 0 wt. % to 60 wt. % alumina.