I’ve had a few conversions recently about glaze durability. Here is my article that I published in the 2016 NCECA journal on that subject.
I looked into the the question of why glazes are durable or not and found that we are able to correlate the overall durability of a glaze to its underlying chemistry.
We are also able to put to rest the “Lemon Test” which we found was a test of little value.