The slurry erosion behaviour of laser clad Fe–Cr–B–Si alloy coatings was investigated at impact angles from 30u to 90u with an increment of 15u, and compared with the slurry erosion behaviour of two laser clad carbide coatings and a non-coated substrate made of AISI 4140 steel. The Fe–Cr–B–Si alloy coatings had slurry erosion resistance. Their overall slurry erosion resistance at impact angles ...

I . Fifty-two pregnant women in a village were divided into three groups, A, B and C , and were given the following supplements: A, iron in the form of zoo mg ferrous sulphate daily; B, Fe (as group A) and 5 mg of folic acid daily; C , Fe and folic acid (as group B) plus an antimalarial drug. 2. Blood samples were collected each week and assessed for haemoglobin and haematocrit values. 3. Dieta...

Catalytic behavior of isomorphously substituted B-, Al-, Ga-, and Fe-containing extra-large pore UTL zeolites was investigated in Knoevenagel condensation involving aldehydes, Pechmann condensation of 1-naphthol with ethylacetoacetate, and Prins reaction of β-pinene with formaldehyde and compared with large-pore aluminosilicate zeolite beta and representative Metal-Organic-Frameworks Cu3(BTC)2 ...

We present an ab initio theoretical investigation of the magnetization and phase stability of two different complex cubic structures of prototype Cr23C6 and Mn23Th6, with an emphasis on the Fe,Co,Ni 23B6 and Fe,Co,Ni 23Zr6 compositions. These phases have recently been observed as secondary or even primary crystallization products of Fe,Co,Ni -Zr-B and related metallic glasses that have been stu...