Guide member for fishing line
A guide member for a fishing line including an alumina ceramic including Ti and Al, a content of Ti being not less than 0.5 mass % in terms of TiO 2 , a content of Al being not less than 92 mass % in terms of Al 2 O 3 , and a main phase of the alumina ceramic being alumina crystals, wherein a content ratio of aluminas crystal with an aspect ratio of not less than 2 within the alumina crystals is not less than 15%.
1. A guide member for a fishing line; wherein the guide member comprises:
an alumina ceramic including Ti and Al, wherein a content of Ti is not less than 0.5 mass % in terms of TiO 2 , wherein a content of Al is not less than 92 mass % in terms of Al 2 O 3 , and wherein a main phase of the alumina ceramic is alumina crystals, wherein
a content ratio of alumina crystal with an aspect ratio of not less than 5 within the alumina crystals is not greater than 10%;
wherein the guide member comprises a radial crushing strength of at least 410 MPa.
2. The guide member for a fishing line according to claim 1 , wherein a maximum aspect ratio of the alumina crystals is less than 5.
3. The guide member for a fishing line according to claim 1 , wherein a standard deviation of aspect ratios of the alumina crystals is not greater than 0.6.
4. The guide member for a fishing line according to claim 1 , wherein a degree of circularity of the alumina crystals is not less than 0.55 and not greater than 0.70.
5. The guide member for a fishing line according to claim 1 , wherein an average crystal particle size of the alumina crystals is not less than 1.8 μm and not greater than 3.0 μm.
6. The guide member for a fishing line according to claim 1 , wherein
a lightness factor in CIE 1976 L*a*b* color space by a diffuse reflection process is not less than 15 and not greater than 25,
a psychometric chroma coordinate a* is not less than 2 and not greater than 7, and
a psychometric chroma coordinate b* is not less than −25 and not greater than −8.
7. A guide member for a fishing line; wherein the guide member comprises:
an alumina ceramic including Ti and Al, wherein a content of Ti is not less than 0.5 mass % in terms of TiO 2 , wherein a content of Al is not less than 92 mass % in terms of Al 2 O 3 , and wherein a main phase of the alumina ceramic is alumina crystals;
wherein a maximum aspect ratio of the alumina crystal is 5; and
wherein the guide member comprises a radial crushing strength of not less than 410 MPa.