ceramic planter
The first time I heard about ceramic knives, I wasn't impressed. Truthfully, I was a bit concerned over the questionable intellect of knife manufacturers. You see, my house is full of ceramic statues and ashtrays. When they fall to the floor as they periodically do, they shatter into many, many smaller pieces. I thought the same would be true with ceramic planter . Ceramic knives are made out of zirconium oxide. They aren't metallic whatsoever and have a flat, off-white to bright white color. Their composition is much harder than steel. Actually, they're second only to diamonds, which are the hardest mineral of all. Isn't that something? There is another class of ceramic knives that have black blades. These blades start out as white zirconium oxide. Then they are changed to black zirconium carbide by an additional firing process called sintering. This process gives the blades the advantage of being even tougher than before. Now they are the strongest knives out the...