ZR

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Related to zirconium: zirconium oxide, zirconia, Cubic zirconium

ZR

1. ISO 3166-1 alpha-2 code for Zaire before it changed its name to the Democratic Republic of the Congo. This was the code used in international transactions to and from Zairean bank accounts.

2. ISO 3166-2 geocode for Zaire. This was used as an international standard for shipping to Zaire.

In both cases, the code is obsolete.
References in periodicals archive ?
Several materials available in the market can be used to manufacture zirconium structures; despite sharing similar chemicals, these materials differ in manufacturing techniques, milling processes, and sintering temperatures, so it is recommended to perform different treatments on the structure surface.
The matrix of oxyhydroxides of aluminum or zirconium with evolved hydroxyl-hydrate cover forms during polymerization of this mixture.
It is clear from the data that the compressive strength increases with the amount of zirconium nanoparticles.
The defence counsel maintained that the arraignment sheet, in which the Public Prosecution accused the defendants of trying to mediate a sale contract of zirconium to another country, was not authentic.
Ghilani countered that an expert's report about the zirconium in question is not used in nuclear reactors.
Zirconium carbide (ZrC) is an important refractory material that has attracted much attention within the industry.
It also led to a slowdown in the sales of zirconium chemicals in theforth quarter of 2008.
and Donna Mettler Professor of Engineering and Applied Science, and a pioneer in the creation of metallic glass, began tweaking the components in their composites, eventually coming up with a group of alloys with a high percentage of titanium, but which maintained the properties of the previously created zirconium alloys.
In this connection national specialists face the task of choosing the most rational from economic viewpoint method of zirconium production, process of the refining melting and formation of ingots of alloys of the required composition with necessary complex of properties of the metal, technologies of production of tube billets, and manufacturing from them of the FR protection shells and other necessary items.
Zirconium is a corrosion resistant metal that is used in high performance pumps and valves.
La busqueda de patentes se ejecuto con las bases de datos Esp@cenet [7], USPTO (United States Trademark and Patent Office [8] y SURFIP [9], mediante el uso de palabras clave ZrN, Zirconium y Nitride.
Advances in silica nanoparticle systems, working in concert with proprietary surface chemistries for sizing and coating--notably zirconium crosslinkers--are helping papermakers boost performance for printers.