Abstract: There is provided a method for depositing a TiO2—Cr2O3 ceramic coating on a substrate. The method includes mixing a powder of sprayable nanostructured titanium(IV) oxide (n-TiO2) and a powder of chromium(III) oxide (Cr2O3), thereby obtaining a n-TiO2—Cr2O3 powder blend. The method also includes thermal spraying particles of the n-TiO2—Cr2O3 powder blend on the substrate at an in-flight particle temperature of or greater than 2350° C. and a particle in-flight velocity of or greater than 350 m/s, thereby obtaining a coated substrate.

Abstract: A method for enabling cold spray of steels, particularly transformation hardenable steels including tool steels, has been made possible by: heat treating steel powder while agitating the powder to limit agglomeration and particle growth; cooling it slowly enough to avoid retransformation hardening; and protecting the powder from cold working or retransformation hardening until cold sprayed. Surprisingly the softening, as well as the agglomerated morphology of powders, has been found to allow for deposition of steel powders. Furthermore, the cooling has been found to be possible within 8 hour heat treatments, and high density, and reasonably high deposition efficiencies have been achieved. Water- and gas-atomized starting powders have been treated and cold sprayed.

Abstract: A wear resistant friction coating (WRFC) can be applied on a lightweight metallic substrate, by applying a cold gas dynamic spray bond coat containing more iron than any other single element directly onto a surface of the substrate, and thermal spraying the WRFC coating over the bond coat to a thickness of at least 500 ?m. Corrosion resistance, adhesion, thermal cycling resistance, and wear resistance have been demonstrated.

Abstract: There is provided a method for depositing a TiO2-Cr2O3 ceramic coating on a substrate. The method includes mixing a powder of sprayable nanostructured titanium(IV) oxide (n-TiO2) and a powder of chromium(III) oxide (Cr2O3), thereby obtaining a n-TiO2-Cr2O3 powder blend. The method also includes thermal spraying particles of the n-TiO2-Cr2O3 powder blend on the substrate at an in-flight particle temperature of or greater than 2350° C. and a particle in-flight velocity of or greater than 350 m/s, thereby obtaining a coated substrate.

Abstract: The shock-absorbing wall structure can be used to equip transport containers which may suffer major falls, generating very high energy on impact. It is chiefly made up of several layers of a cellular bearing structure (7, 7N, 7N+1 . . . ) in which some metal blocks are regularly placed. These blocks are positioned in staggered manner from one layer to another, so as to leave regular spaces in which they can expand in the event of impact. Particular application to transport containers such as fuel rods from nuclear plants or so-called type C containers (Transport Regulations for Hazardous Materials—Edition 96—IAEA Document, Vienna).

Abstract: The shock-absorbing wall structure can be used to equip transport containers which may suffer major falls, generating very high energy on impact.

Abstract: A syringe comprises a body (1) which carries the needle (6), a piston (13), a protective sheath and a spring (17) arranged between the sheath (14) and the body (1). A first and a second shoulder (21) on the outer wall of the body (1) co-operate with a first spur (19) of the sheath (14) to block the body (1) in a first direction, which a second, supple spur (20) and a third shoulder (24) block the body (1) in the other direction.