> as lemmas

1877 Sci. Amer. 1 Dec. 341/3 Experiments were made with two kinds of ferro-boron; the one which contained 11 per cent of boron was somewhat malleable.

1910 Jrnl. Chem. Soc. 98 ii. 508 The behaviour of Goldschmidt's ferroboron and manganese-boron on heating in chlorine and hydrogen sulphide.

2011 Energy Procedia 7 69 It is proposed to use ferroboron as a shield material in 8 rows.