In materials science, lamellar structures or microstructures are composed of fine, alternating layers of different materials in the form of lamellae. They are often observed in cases where a phase transition front moves quickly, leaving behind two solid products, as in rapid cooling of eutectic (such as solder) or eutectoid (such as pearlite) systems. In biology, normal adult bones possess a lamellar structure which may be disrupted by some diseases.
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| - Lamellar structure (en)
- ラメラ構造 (ja)
- Lamellaire microstructuur (nl)
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| - Lamellaire microstructuren zijn microstructuren met fasen in de vorm van laagjes of vlokken, welke te zeer klein zijn, maar zichtbaar worden onder een microscoop. Deze fasen zitten in een matrix of liggen tegen of op elkaar in fijne, afwisselende lagen van verschillende materialen, welke lamellae worden genoemd. Ze worden vaak waargenomen in gevallen, zoals gebeurd bij een snelle afkoeling van eutectische of eutectoïde systemen. Hier zal tijdens de thermodynamische faseovergang verschillende fasen in lamellae (laagjes) afwisselend aan elkaar groeien. Het fasetransformatie-front beweegt snel en laat twee vaste fasen achter. (nl)
- ラメラ構造（ラメラこうぞう、ラメラストラクチャー＝液晶構造）とは液体と固体の中間にある物質を示す液晶状態の中の一つである。液晶状態を生成させるための方法＝サーモトロピック液晶（Thermotropic Liquid Crystal）=温度転移形 とリオトロピック液晶（Lyotropic Liquid）=濃度転移形に分類される。 (ja)
- In materials science, lamellar structures or microstructures are composed of fine, alternating layers of different materials in the form of lamellae. They are often observed in cases where a phase transition front moves quickly, leaving behind two solid products, as in rapid cooling of eutectic (such as solder) or eutectoid (such as pearlite) systems. In biology, normal adult bones possess a lamellar structure which may be disrupted by some diseases. (en)
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| - In materials science, lamellar structures or microstructures are composed of fine, alternating layers of different materials in the form of lamellae. They are often observed in cases where a phase transition front moves quickly, leaving behind two solid products, as in rapid cooling of eutectic (such as solder) or eutectoid (such as pearlite) systems. Such conditions force phases of different composition to form but allow little time for diffusion to produce those phases' equilibrium compositions. Fine lamellae solve this problem by shortening the diffusion distance between phases, but their high surface energy makes them unstable and prone to break up when annealing allows diffusion to progress. A deeper eutectic or more rapid cooling will result in finer lamellae; as the size of an individual lamellum approaches zero, the system will instead retain its high-temperature structure. Two common cases of this include cooling a liquid to form an amorphous solid, and cooling eutectoid austenite to form martensite. In biology, normal adult bones possess a lamellar structure which may be disrupted by some diseases. (en)
- Lamellaire microstructuren zijn microstructuren met fasen in de vorm van laagjes of vlokken, welke te zeer klein zijn, maar zichtbaar worden onder een microscoop. Deze fasen zitten in een matrix of liggen tegen of op elkaar in fijne, afwisselende lagen van verschillende materialen, welke lamellae worden genoemd. Ze worden vaak waargenomen in gevallen, zoals gebeurd bij een snelle afkoeling van eutectische of eutectoïde systemen. Hier zal tijdens de thermodynamische faseovergang verschillende fasen in lamellae (laagjes) afwisselend aan elkaar groeien. Het fasetransformatie-front beweegt snel en laat twee vaste fasen achter. (nl)
- ラメラ構造（ラメラこうぞう、ラメラストラクチャー＝液晶構造）とは液体と固体の中間にある物質を示す液晶状態の中の一つである。液晶状態を生成させるための方法＝サーモトロピック液晶（Thermotropic Liquid Crystal）=温度転移形 とリオトロピック液晶（Lyotropic Liquid）=濃度転移形に分類される。 (ja)
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