1.
core material; inner material
The material forming the inner core of a layered or composite structure. Used in construction, manufacturing, and materials science to describe the central structural component.
壁の芯材に合板を使用した。
Plywood was used as the core material for the wall.
この断熱パネルの芯材は発泡ウレタンでできている。
The core material of this insulation panel is made of urethane foam.
軽量で強度のある芯材を選ぶことが、サンドイッチ構造の設計では重要だ。
Choosing a lightweight yet strong core material is important in the design of sandwich structures.
2.
heartwood
The dense, dark inner wood of a tree trunk, as opposed to the lighter sapwood on the outside. Heartwood is valued in woodworking for its durability and color.
檜の芯材は赤みがかっている。
The heartwood of cypress has a reddish tint.
芯材は辺材より耐久性が高い。
Heartwood is more durable than sapwood.
家具職人は木目の美しい芯材を好んで使う。
Furniture craftsmen prefer to use heartwood with beautiful grain patterns.
A compound of 芯 (core) and 材 (material/wood). The word has two distinct domains: in manufacturing it means core material in a composite structure, and in forestry/woodworking it means the dark inner wood of a tree.
COMMON COLLOCATIONS:
- 芯材と表面材: core and surface material
- 芯材と辺材: heartwood and sapwood
- 断熱芯材: insulation core material
SIMILAR WORDS:
- 心材: heartwood (alternate kanji, same meaning in the forestry sense)
- 辺材: sapwood (the lighter outer wood, opposite of heartwood)
- 基材: base material; substrate