New Developments in Understanding the Amorphous State of Matter Conference, May 22-27, 1999, Buffalo, NY

9974343 Killing对于一种给定的玻璃形成物质的一种以上的非结晶变体的存在的证据正在增加。 这种现象被称为多晶现象，它为我们对物质无定形状态的认识引入了新的视角。因此，有必要对这一现象进行评估，并确定其对玻璃研究未来方向的影响。为此，将在1999年5月22日至27日在纽约州布法罗举行的美国晶体学协会年会上举行一次专门讨论这一问题的会议。本次会议的目的是批判性地评估表明多晶性的主要发现，评估这一概念的重要性及其对玻璃材料设计和加工的影响。会议还将讨论结构定性工作随之而来的新挑战，在这方面，结构定性工作正面临新的挑战。 多晶性是一个相当新的概念，该领域的研究人员来自不同的背景，包括材料科学，凝聚态物理学，应用数学，化学，地质学等。 受邀的演讲者代表了世界各地在这一主题上进行开创性工作的大多数研究人员。 组成本次会议的三个专题讨论会的标题是：太赫兹及以下的动力学;结构表征的替代方法;结构转变和多（a）态射。 每个专题讨论会将首先邀请1或2个演讲，然后提交论文。 每天结束时，都留出时间进行讨论。 这次会议的结果将作为会议记录印发。 这次关于非晶体材料多晶性的会议将与美国晶体学协会年会同时举行。 科学界的共识是，我们对非晶体材料结构的理解是不完整的。 许多研究人员最近的工作表明，一种材料可能存在几种非晶态或相。 这次会议将使研究人员能够比较他们的工作结果，从而使他们能够为玻璃科学和技术的研究开发新的想法和方向。

9974343KiefferEvidence for the occurrence of more than one non-crystalline modification of a given glass-forming substance is growing. This phenomenon, termed polyamorphism, introduces new perspectives to our perception of the amorphous state of matter. It is therefore indicated to conduct an assessment of this phenomenon and determine its impact on future directions in glass research. To this end, a conference dedicated to this issue will be held, on the occasion of the Annual Meeting of the American Crystallographic Association, May 22-27, 1999, in Buffalo, NY. The purpose of this conference is to critically evaluate the leading findings that suggest polyamorphism, assess the importance of this concept, and its implications for design and processing of glassy materials. The meeting will also address the new challenges ensue for structural characterization, which in this context is facing new challenges. Polyamorphism is a fairly new concept and researchers in this area come from various backgrounds, including materials science, condensed matter physics, applied mathematics, chemistry, geology, etc. This diversity is reflected in the list of invited speakers. The invited speakers represent most of the researchers from around the world who have conducted pioneering work on this subject matter. The three symposia that comprise this conference are entitled: Dynamics at and Below the THz; Alternative Methods for Structural Characterization; and Structural Transitions and Poly(a)morphism. Each of the symposia will be led off with 1 or 2 invited talks and then followed by contributed papers. At the end of each day time has been set aside for discussion. The results of this conference will be available as a proceedings. %%%This conference on polyamorphism in non-crystalline materials will be held in conjunction with the annual American Crystallographic Association meeting. The consensus of the scientific community is that our understanding about the structure of non-crystalline materials is incomplete. Recent work by a variety of researchers indicates that the several amorphous states, or phases, may exist for one material. This conference will allow researchers to compare results of their work and thus enable them to develop new ideas and directions for research in glass science and technology.***