I own a BBQ Cleaning and repair company and one common product we replace are the ceramic radiants on DCS (Dynamic Cooking Systems) BBQ's. Here is a picture of the rods: 
They're 8-9" long and cylindrical. Although they're pricey, I am wondering if they might be good in some form for sharpening? Was thinking of using dowel to hold them in place on a block with a strop on one side of it. Please advise.

They're 8-9" long and cylindrical. Although they're pricey, I am wondering if they might be good in some form for sharpening? Was thinking of using dowel to hold them in place on a block with a strop on one side of it. Please advise.
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