Abstract: In one aspect of the invention, a wear-resistant tool is disclosed which may comprise first and second cemented metal carbide segments chemically bonded together at an interface. The first segment may comprise a first coefficient of thermal expansion (CTE) at least at its interfacial surface and the second segment may comprise a second CTE at least at its interfacial surface less than the CTE of the first segment. The first segment may further comprise a cross-sectional thickness substantially equal to or greater than a cross-sectional thickness of the second segment at the interface.

Abstract: In one aspect of the invention, a wear-resistant tool is disclosed which may comprise first and second cemented metal carbide segments chemically bonded together at an interface. The first segment may comprise a first coefficient of thermal expansion (CTE) at least at its interfacial surface and the second segment may comprise a second CTE at least at its interfacial surface less than the CTE of the first segment. The first segment may further comprise a cross-sectional thickness substantially equal to or greater than a cross-sectional thickness of the second segment at the interface.

Abstract: An attack tool for degrading materials is disclosed which comprises a base segment comprising an attachment to a driving mechanism, a first wear-resistant segment bonded to the base segment, a second wear-resistant segment bonded to the first wear-resistant segment at a brazed joint opposite the base segment, and an outer diameter of both the wear-resistant segments proximate the joint comprising a finish ground surface.

Abstract: Herbicidal compositions are provided which cause rapid symptomology while delivering long term control of regrowth of plants. The herbicidal compositions comprise N-phosphonomethylglycine or a herbicidal derivative thereof, a bipyridilium or a herbicidal derivative thereof, and at least one surfactant. A herbicidal spray composition is preparable from a particulate solid concentrate or a liquid concentrate. Also provided is a method for killing or controlling the growth of plants comprising the step of contacting the foliage of said plants with an aqueous herbicidal composition of the invention.

Abstract: Herbicidal compositions are provided which cause rapid symptomology while delivering long term control of re-growth of plants. The herbicidal compositions comprise N-phosphonomethylglycine or a herbicidal derivative thereof a bipyridilium or a herbicidal derivative thereof, and at least one surfactant. A herbicidal spray composition is preparable from a particulate solid concentrate or a liquid concentrate. Also provided is a method for killing or controlling the growth of plants comprising the step of contacting the foliage of said plants with an aqueous herbicidal composition of the invention.