Crystallization is largely over when Y {\displaystyle Y} reaches values close to 1, which will be at a crystallization time t X {\displaystyle t_{X}} defined by K t X n ∼ 1 {\displaystyle Kt_{X}^{n}\sim 1} , as then the exponential term in the above expression for Y {\displaystyle Y} will be small. Thus crystallization takes a time of order