▎ 摘　　要

NOVELTY - The airfoil has an airfoil body and an edge guard (200,302) that is arranged about an edge of the airfoil body. The airfoil body is provided with a first material. The edge guard is provided with a matrix composite. The matrix composite is provided with a toughness that is greater than a toughness of the first material. The edge guard is provided with a heating conduit (218) arranged within a portion of the edge guard. The airfoil is provided with the fan blade or an outlet guide vane. USE - Airfoil e.g. fan blade and outlet guide vane for fan section of turbine engine (claimed) of aircraft. ADVANTAGE - The edge guards can be suitable for turbine engines that have such a relatively low fan tip speed. The edge guards are formed in a portion of a material that includes a non-metallic material, such as a matrix composite, and can be utilized on fan blades of a fan that has a relatively low fan tip speed. Thus, the rotational weight of the fan is reduced while improving the strength-to-weight ratio and/or while improving toughness, flexural modulus, bulk modulus, hardness, elasticity, or ductility. The fan blades and/or edge guards can provide enhanced anti-icing properties to the fan blades of such a geared turbine engine. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a turbine engine; (2) a method of manufacturing an airfoil for a fan section of a turbine engine. DESCRIPTION OF DRAWING(S) - The drawing shows perspective views of edge guards that is attached to an airfoil, such as fan blade or an outlet guide vane. 200,302Edge guard 218Heating conduit 400Pathway 402Forward region 404Lateral region