Uses of Boron 1) Boron fibres have enormous tensile strength and hence are used to make bullet proof vests and light composite material for aircraft. 2) Natural boron is 20% boron-10 and 80% boron-11.Boron-10 has a high cross section for absorption of low energy neutrons. 3) Borax and boric acid are used in the manufacture of heat resistant glass, glass wool and fiber … [Read more...] about Uses of Boron and Aluminium